Endothermic physiology of extinct megatooth sharks.

Michael L Griffiths, Robert A Eagle, Sora L Kim, Randon J Flores, Martin A Becker, Harry M Maisch, Robin B Trayler, Rachel L Chan, Jeremy McCormack, Alliya A Akhtar, Aradhna K Tripati, Kenshu Shimada

July 2023

Synopsis of Social media discussions

The preference for scientific evidence is evident in posts emphasizing isotope analysis and body temperature estimates, with phrases like 'confirms' and 'new research,' reflecting high agreement and impact. The tone varies from technical in discussions about physiology to more casual comments about movies, but the overall emphasis on the study's significance indicates strong interest and deep engagement.

A
Agreement
 Strong agreement

Most discussions are positive, supporting the idea that Megalodon was likely warm-blooded based on recent research, with many explicitly affirming the study's findings.

I
Interest
 High level of interest

Posts show high interest, referencing scientific methods and implications, with several mentions of isotopic analyses and thermoregulation debates.

E
Engagement
 Moderate level of engagement

While some discussions reference specific scientific details like isotope analysis, overall engagement remains moderate, with some users expressing curiosity and support.

I
Impact
 High level of impact

The discussions suggest significant impact, as many posts link the research to broader questions about Megalodon's physiology and extinction, emphasizing its importance.

Social Mentions

YouTube

5 Videos

Bluesky

1 Posts

Facebook

2 Posts

Twitter

110 Posts

Blogs

16 Articles

News

345 Articles

Metrics

Video Views

2,348,369

Total Likes

31,285

Extended Reach

2,863,123

Social Features

479

Timeline: Posts about article

Top Social Media Posts

Posts referencing the article

Estimating the Size of Megalodon: New Insights into Its Extent

Estimating the Size of Megalodon: New Insights into Its Extent

Recent research suggests we may have underestimated Megalodon's true length. The study highlights ancient nursery areas in Panama from the Miocene, emphasizing the importance of early habitats for juvenile sharks and shedding light on the shark's life history and size.

Ben G Thomas

July 15, 2024

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The Giant Killer Sperm Whale: Rival of Megalodon

The Giant Killer Sperm Whale: Rival of Megalodon

Among prehistoric sharks, none are more famous than the giant Megalodon, a predator that ruled ancient oceans. This video explores the giant killer sperm whale Livyatan melvillei, revealing its significance in marine food chains and how it compared to the formidable Megalodon.

Ben G Thomas

July 30, 2023

1,026,080 views

Megalodon Feeding Habits and Trophic Position Explained

Megalodon Feeding Habits and Trophic Position Explained

Direct evidence of Megalodon feeding behavior is rare. This video explores the fossils of Megalodon's victims and examines trophic positions in marine food chains, revealing their significant role as apex predators before their extinction 35 million years ago.

Moth Light Media

December 5, 2024

137,556 views

Megalodon Endothermy and Extinction Insights

Megalodon Endothermy and Extinction Insights

The study explores whether *Carcharocles megalodon* was warm-blooded or cold-blooded using isotope analysis. Evidence suggests Megalodon maintained a warmer body temperature, which may have contributed to its gigantism and eventual extinction during the Pliocene.

Zoomundo

August 20, 2024

25,613 views

Endothermic Physiology of Extinct Megatooth Sharks Unveiled

Endothermic Physiology of Extinct Megatooth Sharks Unveiled

This study explores whether Megalodon was warm-blooded or cold-blooded, using isotope analysis. Findings suggest Megalodon maintained a warmer body temperature, indicating endothermy, which may have contributed to its gigantism and eventual extinction.

Raptor Chatter

July 29, 2023

15,450 views

  • Grok
    @RXTKV17 (Twitter)

    @excalib51686983 @princesse_rasta @CestTerrifiant https://t.co/Erb7E5j0I5 https://t.co/4UK3N4BYRZ https://t.co/a7FVnE9Md9 Voici 3 études qui ont été validée en peer reviews avant publication. Maintenant envoie tes études scientifiques qui démentent la possibilité de l’existence même du megalodon ?
    view full post

    August 7, 2025

  • ヤマタノオロチ
    @oroti0 (Twitter)

    RT @V2manburu: ◎海洋古生物の体温 ①中生代の海生爬虫類 ❶魚竜&首長竜:33〜41度 (https://t.co/DoRgS8vtVC) ❷海鰐 ⑴テレオサウルス科:27〜31度 ⑵メトリオリンクス科:29〜37度 (https://t.co/zGWBiDmYj…
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    April 17, 2025

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  • Lady Karalee Avelli ( Learyth )
    @KaraAvelli (Twitter)

    How Big Was Megalodon Really? https://t.co/2AMWqrGkjq via @YouTube
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    January 5, 2025

    1

  • マンブルV2/フォアグラ
    @V2manburu (Twitter)

    RT @V2manburu: ◎海洋古生物の体温 ①中生代の海生爬虫類 ❶魚竜&首長竜:33〜41度 (https://t.co/DoRgS8vtVC) ❷海鰐 ⑴テレオサウルス科:27〜31度 ⑵メトリオリンクス科:29〜37度 (https://t.co/zGWBiDmYj…
    view full post

    December 4, 2024

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  • 旧アノーマン
    @anoman113 (Twitter)

    RT @V2manburu: ◎海洋古生物の体温 ①中生代の海生爬虫類 ❶魚竜&首長竜:33〜41度 (https://t.co/DoRgS8vtVC) ❷海鰐 ⑴テレオサウルス科:27〜31度 ⑵メトリオリンクス科:29〜37度 (https://t.co/zGWBiDmYj…
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    December 4, 2024

    9

  • Brian Black
    @BrianBlackBooks (Twitter)

    @meg82159 @theMeg_theLoch How big was Megaladon really? https://t.co/c0rYL8LT5Y?
    view full post

    July 24, 2024

    1

  • Hashim AbdusSamad
    @MegaWubba89 (Twitter)

    How Big Was Megalodon Really? https://t.co/d77tjp7PYL via @YouTube
    view full post

    July 17, 2024

  • マンブルV2/フォアグラ
    @V2manburu (Twitter)

    RT @V2manburu: ◎海洋古生物の体温 ①中生代の海生爬虫類 ❶魚竜&首長竜:33〜41度 (https://t.co/DoRgS8vtVC) ❷海鰐 ⑴テレオサウルス科:27〜31度 ⑵メトリオリンクス科:29〜37度 (https://t.co/zGWBiDmYj…
    view full post

    March 31, 2024

    9

  • マンブルV2/フォアグラ
    @V2manburu (Twitter)

    RT @V2manburu: ◎海洋古生物の体温 ①中生代の海生爬虫類 ❶魚竜&首長竜:33〜41度 (https://t.co/DoRgS8vtVC) ❷海鰐 ⑴テレオサウルス科:27〜31度 ⑵メトリオリンクス科:29〜37度 (https://t.co/zGWBiDmYj…
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    February 15, 2024

    9

  • David
    @DavidLaVErn8 (Twitter)

    https://t.co/XYH84wW9fL
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    December 27, 2023

  • SelectaVision Cinema & TV
    @CED_LD_Guy (Twitter)

    @MistrelofHorror Just about time for a movie about this monstrous whale that rivaled the Meg... https://t.co/rJQMKpQl2L
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    September 30, 2023

    2

  • Joel López Parés
    @jovepaleontoleg (Twitter)

    RT @isotopogrog:
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    August 16, 2023

    6

  • Pep Anton Vieta
    @pquimic (Twitter)

    RT @IGeociencias: Una nueva investigación geoquímica con isótopo de oxígeno confirma que el tiburón megalodón era de sangre caliente o más…
    view full post

    August 7, 2023

    1

  • IGEO (CSIC-UCM)
    @IGeociencias (Twitter)

    Una nueva investigación geoquímica con isótopo de oxígeno confirma que el tiburón megalodón era de sangre caliente o más exactamente regionalmente endotérmico, como algunos tiburones actuales. https://t.co/bvCD60E4JG
    view full post

    August 7, 2023

    2

    1

  • IGEO (CSIC-UCM)
    @IGeociencias (Twitter)

    Una nueva investigación geoquímica con isótopo de oxígeno confirma que el tiburón megalodón era de sangre caliente o más exactamente regionalmente endotérmico, como algunos tiburones actuales. https://t.co/bvCD60E4JG
    view full post

    August 7, 2023

    2

  • Linda Mora MacBeath
    @moramacbeath (Twitter)

    https://t.co/KBoGoEr85V
    view full post

    August 4, 2023

  • JPT_JTEC
    @JtecJpt (Twitter)

    An Animal To Rival Megalodon? - The Giant Killer Sperm Whale Livyatan https://t.co/suexcjZrLO via @YouTube
    view full post

    July 31, 2023

  • rocksolidfossils
    @rocksolidfossil (Twitter)

    An Animal To Rival Megalodon? - The Giant Killer Sperm Whale Livyatan https://t.co/652bxAFKt4 via @YouTube #Megalodon #TheMeg2 #MegShark #TheMegalodon #GiantSharks #ExtinctSharks #PrehistoricSharks #HugeSharks #Livyatan #LivyatanVsMegalodon #LivyatanMelvillei #rocksolidfossils
    view full post

    July 31, 2023

    1

  • Mario C. Rosina
    @MarioRosinaB (Twitter)

    An Animal To Rival Megalodon? - The Giant Killer Sperm Whale Livyatan https://t.co/j2s5pRwI0f vía @YouTube
    view full post

    July 30, 2023

  • Ryan Hau
    @LordBlastington (Twitter)

    https://t.co/XBA39qXGGD
    view full post

    July 30, 2023

  • Ben Johnson
    @bensahuskie (Twitter)

    @kathleen_belew If you want nonfiction, here is an excellent paper written about one of the possible reasons for their demise. https://t.co/AT2GkEsusA
    view full post

    July 26, 2023

  • Deming Yang
    @DemingYang (Twitter)

    RT @isotopogrog:
    view full post

    July 24, 2023

    6

  • Oliver Shipley
    @OllieShipley (Twitter)

    How hot was The Meg? Great summary by @isotopogrog in @PNASNews on thermoregulation of the infamous #superpredator. https://t.co/DL0hzH2rig Original paper by Griffith's et al. https://t.co/67VPWS2JrV #ancientsharks #clumpedisotopes #sharkteeth #megalodon https://t.co/eAYGS8Fs1Q
    view full post

    July 20, 2023

    5

  • Michael Griffiths
    @mickgriff02 (Twitter)

    RT @isotopogrog:
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    July 19, 2023

    6

  • MMMelodee
    @MMMukalla (Twitter)

    RT @isotopogrog:
    view full post

    July 18, 2023

    6

  • Turkana Miocene
    @TurkanaMiocene (Twitter)

    RT @isotopogrog:
    view full post

    July 18, 2023

    6

  • Oliver Shipley
    @OllieShipley (Twitter)

    RT @isotopogrog:
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    July 17, 2023

    6

  • Gregory Henkes
    @isotopogrog (Twitter)


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    July 17, 2023

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    6

  • けーえぬ
    @KnJhehduurbrnf (Twitter)

    RT @V2manburu: ◎海洋古生物の体温 ①中生代の海生爬虫類 ❶魚竜&首長竜:33〜41度 (https://t.co/DoRgS8vtVC) ❷海鰐 ⑴テレオサウルス科:27〜31度 ⑵メトリオリンクス科:29〜37度 (https://t.co/zGWBiDmYj…
    view full post

    July 17, 2023

    9

  • BeyderLab
    @BeyderLab (Twitter)

    Endothermic physiology of extinct megatooth sharks | PNAS https://t.co/g1LR77WOGG
    view full post

    July 6, 2023

  • StableIsotopeEcology@CER_KyotoUniv
    @IsotopeEcology (Twitter)

    Endothermic physiology of extinct megatooth sharks | PNAS https://t.co/EMr87fw1Oq #stableisotopes
    view full post

    July 5, 2023

    2

  • Freeman
    @IsomorphismThm (Twitter)

    PaleoPost: we finally have evidence that Otodus Megalodon (formerly Carcharodon) was warm-blooded! New research puts their mean temp at ~7°C warmer than the ambient seawater, which may explain their high trophic level and cosmopolitan distribution. https://t.co/wip582edLO
    view full post

    July 5, 2023

  • Jim Kirkland
    @Paleojim (Twitter)

    Endothermy in Otodus megalodon as a potention driver in its success & extinction. https://t.co/Ep0NkBc07U @ElasmoSociety @MA_Sharks @JeremyBRoberts @soFISHtication @MISS_Elasmo @PaleoSoc @SVP_vertpaleo
    view full post

    July 3, 2023

    3

  • Shark Science
    @SharkScience (Twitter)

    Endothermic physiology of extinct megatooth #sharks | Otodus #megalodon https://t.co/iP2Lr9u00k
    view full post

    July 3, 2023

    1

  • Siegfried Treitner
    @TreitnerS (Twitter)

    Endothermic physiology of extinct megatooth sharks | PNAS https://t.co/pHkBJAp4UZ
    view full post

    July 2, 2023

  • GerardPJ
    @Paleogee26 (Twitter)


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    July 2, 2023

  • Troy Grant
    @Sharethwealth (Twitter)

    Endothermic physiology of extinct megatooth sharks | PNAS https://t.co/pXUORPNZ2K
    view full post

    June 30, 2023

  • 流刑囚
    @kyotoanda (Twitter)

    RT @V2manburu: ◎海洋古生物の体温 ①中生代の海生爬虫類 ❶魚竜&首長竜:33〜41度 (https://t.co/DoRgS8vtVC) ❷海鰐 ⑴テレオサウルス科:27〜31度 ⑵メトリオリンクス科:29〜37度 (https://t.co/zGWBiDmYj…
    view full post

    June 30, 2023

    9

  • Paléontologie
    @PaleontologieFr (Twitter)

    L'étude d'émailoïde
    view full post

    June 30, 2023

    9

  • Philippe Claeys VUB
    @ClaeysVub (Twitter)

    RT @NielsJdeWinter: Megalodon may have been (partially) warm-blooded. Nice study @PNASNews applying #clumped and stable #oxygen #isotopes o…
    view full post

    June 28, 2023

    2

  • Shapley Fürskyn
    @shiva137 (Twitter)

    RT @PNASNews: Ancient megatooth sharks were giants. Isotope analysis of fossilized Otodus megalodon teeth shows the sharks were 7 °C warmer…
    view full post

    June 28, 2023

    9

  • Tessmar & Raible Labs
    @FRKT_labs (Twitter)

    RT @PNASNews: Ancient megatooth sharks were giants. Isotope analysis of fossilized Otodus megalodon teeth shows the sharks were 7 °C warmer…
    view full post

    June 28, 2023

    9

  • belairguy
    @belairguy (Twitter)

    RT @PNASNews: Ancient megatooth sharks were giants. Isotope analysis of fossilized Otodus megalodon teeth shows the sharks were 7 °C warmer…
    view full post

    June 28, 2023

    9

  • HeapsGood Productions & HeapsGood Music
    @Heapsgood (Twitter)

    RT @DinosaurUni: Wait, what? Megalodon was "warm-blooded"?
    view full post

    June 28, 2023

    2

  • Jezza Morgan ;
    @porpster (Twitter)

    RT @PNASNews: Ancient megatooth sharks were giants. Isotope analysis of fossilized Otodus megalodon teeth shows the sharks were 7 °C warmer…
    view full post

    June 28, 2023

    9

  • Cheng-Yu Chen (Joey)
    @joeychengyu (Twitter)

    RT @PNASNews: Ancient megatooth sharks were giants. Isotope analysis of fossilized Otodus megalodon teeth shows the sharks were 7 °C warmer…
    view full post

    June 28, 2023

    9

  • Ankit Singla
    @In_AnkitSingla (Twitter)

    RT @PNASNews: Ancient megatooth sharks were giants. Isotope analysis of fossilized Otodus megalodon teeth shows the sharks were 7 °C warmer…
    view full post

    June 28, 2023

    9

  • PNASNews
    @PNASNews (Twitter)

    Ancient megatooth sharks were giants. Isotope analysis of fossilized Otodus megalodon teeth shows the sharks were 7 °C warmer than the seawater they swam in, which was so energetically costly it could have contributed to their extinction. In PNAS: https://t.co/B4x3pIGHVU https://t.co/oIcmpcR1Xp
    view full post

    June 28, 2023

    18

    9

  • Thiago Carvalho
    @cyrilpedia.bsky.social (Bluesky)

    Warm-blooded mega sharks "Our results show that O. megalodon had an overall warmer body temperature compared with its ambient environment and other coexisting shark species" https://www.pnas.org/doi/10.1073/pnas.2218153120
    view full post

    June 28, 2023

  • マンブルV2/フォアグラ
    @V2manburu (Twitter)

    RT @V2manburu: ◎海洋古生物の体温 ①中生代の海生爬虫類 ❶魚竜&首長竜:33〜41度 (https://t.co/DoRgS8vtVC) ❷海鰐 ⑴テレオサウルス科:27〜31度 ⑵メトリオリンクス科:29〜37度 (https://t.co/zGWBiDmYj…
    view full post

    June 28, 2023

    9

  • Sea-Unicorn
    @SeaUnicorn2020 (Twitter)

    RT @mickgriff02: We have a new paper out in @PNASNews today utilizing phosphate oxygen and clumped isotopes to infer endothermy in extinct…
    view full post

    June 28, 2023

    10

  • Ola Kwiecien
    @OlaKwiecien3 (Twitter)

    RT @NielsJdeWinter: Megalodon may have been (partially) warm-blooded. Nice study @PNASNews applying #clumped and stable #oxygen #isotopes o…
    view full post

    June 28, 2023

    2

  • NielsdeWinter
    @NielsJdeWinter (Twitter)

    Megalodon may have been (partially) warm-blooded. Nice study @PNASNews applying #clumped and stable #oxygen #isotopes on #megalodon teeth reveal higher than expected body temperatures
    view full post

    June 28, 2023

    7

    2

  • 長月
    @naga_nofu (Twitter)

    RT @paleont_kt: メガロドンは、温血動物（内温性）だった、という記事→. https://t.co/guK5opQ5ck 。「メガロドンの平均体温は27度で、現代のサメの平均体温である22度～26.6度より高い」と。論文はこちら（英語ですが無料）→ https:/…
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    June 27, 2023

    7

  • Yoshitugu Tuduki/都築良継
    @TSMoon56 (Twitter)

    RT @paleont_kt: メガロドンは、温血動物（内温性）だった、という記事→. https://t.co/guK5opQ5ck 。「メガロドンの平均体温は27度で、現代のサメの平均体温である22度～26.6度より高い」と。論文はこちら（英語ですが無料）→ https:/…
    view full post

    June 27, 2023

    7

  • ふぉっしる店長
    @fossiltenchou (Twitter)

    RT @paleont_kt: メガロドンは、温血動物（内温性）だった、という記事→. https://t.co/guK5opQ5ck 。「メガロドンの平均体温は27度で、現代のサメの平均体温である22度～26.6度より高い」と。論文はこちら（英語ですが無料）→ https:/…
    view full post

    June 27, 2023

    7

  • Rui Kurosaka
    @squid_rui (Twitter)

    RT @paleont_kt: メガロドンは、温血動物（内温性）だった、という記事→. https://t.co/guK5opQ5ck 。「メガロドンの平均体温は27度で、現代のサメの平均体温である22度～26.6度より高い」と。論文はこちら（英語ですが無料）→ https:/…
    view full post

    June 27, 2023

    7

  • たか≒くろさかくん
    @sumomaguro117 (Twitter)

    RT @paleont_kt: メガロドンは、温血動物（内温性）だった、という記事→. https://t.co/guK5opQ5ck 。「メガロドンの平均体温は27度で、現代のサメの平均体温である22度～26.6度より高い」と。論文はこちら（英語ですが無料）→ https:/…
    view full post

    June 27, 2023

    7

  • ｶﾞｲｽ
    @shitake_reverse (Twitter)

    RT @paleont_kt: メガロドンは、温血動物（内温性）だった、という記事→. https://t.co/guK5opQ5ck 。「メガロドンの平均体温は27度で、現代のサメの平均体温である22度～26.6度より高い」と。論文はこちら（英語ですが無料）→ https:/…
    view full post

    June 27, 2023

    7

  • 田中順也@古生物のしたたかな生き方
    @tanituki (Twitter)

    RT @paleont_kt: メガロドンは、温血動物（内温性）だった、という記事→. https://t.co/guK5opQ5ck 。「メガロドンの平均体温は27度で、現代のサメの平均体温である22度～26.6度より高い」と。論文はこちら（英語ですが無料）→ https:/…
    view full post

    June 27, 2023

    7

  • Ken Tsuchiya
    @paleont_kt (Twitter)

    メガロドンは、温血動物（内温性）だった、という記事→. https://t.co/guK5opQ5ck 。「メガロドンの平均体温は27度で、現代のサメの平均体温である22度～26.6度より高い」と。論文はこちら（英語ですが無料）→ https://t.co/JUe4lDZyy9
    view full post

    June 27, 2023

    14

    7

  • Chris Harrod
    @chris_harrod (Twitter)

    RT @mickgriff02: We have a new paper out in @PNASNews today utilizing phosphate oxygen and clumped isotopes to infer endothermy in extinct…
    view full post

    June 27, 2023

    10

  • Jon Kuntz, PhD
    @Shark_eye_sci (Twitter)

    RT @mickgriff02: We have a new paper out in @PNASNews today utilizing phosphate oxygen and clumped isotopes to infer endothermy in extinct…
    view full post

    June 27, 2023

    10

  • ぱっぽ
    @papponokeeper (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • Jürgen "jkr" Kraus
    @jkr_on_the_web (Twitter)

    The megalodon shark had a significantly higher body temperature than previously thought. I hope this will not cause the respective trash movies ("cold-blooded killer") to be re-created. https://t.co/o1INGSDINF
    view full post

    June 27, 2023

    1

  • Ifail4you
    @Ifail4you (Twitter)

    RT @PaleonewsFrance: - Fais moi frissonner en deux mots - Mégalodon endotherme ! https://t.co/atiD40fBd5 Source: https://t.co/6t0WYHQVvX
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    June 27, 2023

    2

  • 梅
    @Umemememoon (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • ❤️‍
    @Zerobuster_g (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • マンブルV2/フォアグラ
    @V2manburu (Twitter)

    ◎海洋古生物の体温 ①中生代の海生爬虫類 ❶魚竜&首長竜:33〜41度 (https://t.co/DoRgS8vtVC) ❷海鰐 ⑴テレオサウルス科:27〜31度 ⑵メトリオリンクス科:29〜37度 (https://t.co/zGWBiDmYju) ❸モササウルス科:33〜36度 (https://t.co/VVIZxpoN1x) ②メガロドン:25〜30度 (https://t.co/w3G1eNYMUH)
    view full post

    June 27, 2023

    9

    9

  • Gareth Fraser
    @garethjfraser (Twitter)

    RT @mickgriff02: We have a new paper out in @PNASNews today utilizing phosphate oxygen and clumped isotopes to infer endothermy in extinct…
    view full post

    June 27, 2023

    10

  • 式零負
    @nullzwai (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • 如月ムイカ
    @0SfGuzVtcQ7VMMG (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • Marcos K. Pinheiro / "Marcos Wyvern" (Marcosaurus)
    @BongMarcosaurus (Twitter)

    RT @TomHoltzPaleo: Endothermic physiology of extinct megatooth sharks | PNAS https://t.co/1A0sshtfnz
    view full post

    June 27, 2023

    1

  • Deming Yang
    @DemingYang (Twitter)

    RT @mickgriff02: We have a new paper out in @PNASNews today utilizing phosphate oxygen and clumped isotopes to infer endothermy in extinct…
    view full post

    June 27, 2023

    10

  • Thomas R. Holtz, Jr.
    @TomHoltzPaleo (Twitter)

    Endothermic physiology of extinct megatooth sharks | PNAS https://t.co/1A0sshtfnz
    view full post

    June 27, 2023

    6

    1

  • YOH
    @YOH_T_cho (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • Hady George
    @HoudzGeorge (Twitter)

    RT @CooperPalaeo: A rare double-whammy in that we have 2 new megalodon papers published over the last few days. May well do a short thread…
    view full post

    June 27, 2023

    6

  • るいん
    @Ruin_Vivi18 (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • ぷん
    @GhMwo (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • Kyokichi　屋号：Office Liquid
    @Kn_ggergrgrgegf (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • BattleChampion47
    @BatleChampion47 (Twitter)

    RT @CooperPalaeo: A rare double-whammy in that we have 2 new megalodon papers published over the last few days. May well do a short thread…
    view full post

    June 27, 2023

    6


  • @IsurusDesori (Twitter)

    RT @CooperPalaeo: A rare double-whammy in that we have 2 new megalodon papers published over the last few days. May well do a short thread…
    view full post

    June 27, 2023

    6

  • CRCpaleos
    @CRCpaleos (Twitter)

    ARTÍCULO REFERENCIA (acceso abierto) Endothermic physiology of extinct megatooth sharks https://t.co/KkPKpN5drf vía @PNASNews
    view full post

    June 27, 2023

  • 大門
    @daimon_108 (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • Sergio González Mora
    @PhylumBryozoa (Twitter)

    Endothermic physiology of extinct megatooth sharks | PNAS https://t.co/OkTUZcq86i
    view full post

    June 27, 2023

    1

  • マンブルV2/フォアグラ
    @V2manburu (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • ビクーピー
    @B47197246 (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • アイロニー・スカイウォーカー
    @1000Yourmajesty (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • Nussaïbah Raja
    @mauritiantales (Twitter)

    RT @CooperPalaeo: A rare double-whammy in that we have 2 new megalodon papers published over the last few days. May well do a short thread…
    view full post

    June 27, 2023

    6

  • ネルサメ
    @nerusame (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • Dantonio
    @Daniel_A_Villar (Twitter)

    RT @josh_zimmt: Six years ago I asked a potential PhD advisor whether Megalodon was an endotherm or an ectotherm... While I didn't get an o…
    view full post

    June 27, 2023

    2

  • Ｍ・田村
    @318kj89ki (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • メガネ
    @hatsusenoUK (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • Yoshitugu Tuduki/都築良継
    @TSMoon56 (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • 大帝Bukkey
    @ibukkey (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • はにわ
    @bey_lego_haniwa (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • おにつか
    @anVtLP4h3Fnhlu9 (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • James Ronan
    @JurassicJames1 (Twitter)

    RT @CooperPalaeo: A rare double-whammy in that we have 2 new megalodon papers published over the last few days. May well do a short thread…
    view full post

    June 27, 2023

    6

  • 世の中ぴょぃ
    @2lovely_birdS (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • Dr. Jack Cooper
    @CooperPalaeo (Twitter)

    A rare double-whammy in that we have 2 new megalodon papers published over the last few days. May well do a short thread on each of them later this week if followers would be interested. Many congrats to the authors!
    view full post

    June 27, 2023

    27

    6

  • たいそん
    @arrowsrex (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • 直
    @soya_moon (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • ラプト・メリゴールド
    @rapto_4500X (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • KINA
    @ppp200x (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • 神矢　みのる
    @minorukamiya (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • 九字か十字を切れのりたま
    @tohjiroh (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • イマイヒロ 「玉屋本舗」
    @tamayazakka (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • FossilFlex™
    @FossilFlex (Twitter)

    RT @josh_zimmt: Six years ago I asked a potential PhD advisor whether Megalodon was an endotherm or an ectotherm... While I didn't get an o…
    view full post

    June 27, 2023

    2

  • カナディアンロッキー
    @_canislups (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52

  • コウメグ
    @KouMEG219246 (Twitter)

    RT @pantheo27705718: 史上最大のサメ「メガロドン」は温血動物だったことが判明 - GIGAZINE 論文フリー https://t.co/ewV3KUOBUS https://t.co/JNzo1ptcXN
    view full post

    June 27, 2023

    52


  • @Professeur_Zeta (Twitter)

    RT @PaleonewsFrance: - Fais moi frissonner en deux mots - Mégalodon endotherme ! https://t.co/atiD40fBd5 Source: https://t.co/6t0WYHQVvX
    view full post

    June 27, 2023

    2

Abstract Synopsis

  • The study explores whether extinct megatooth sharks, specifically *Carcharocles megalodon*, were ectothermic (cold-blooded) or endothermic (warm-blooded), using geochemical methods like isotope analysis to gather evidence.
  • Findings indicate that *Megalodon* likely maintained a warmer body temperature than its surrounding environment, supporting the idea that it was endothermic, which may have contributed to its large size and gigantism.
  • The high metabolic costs associated with maintaining elevated body temperatures could have made *Megalodon* more vulnerable to extinction during the Pliocene, unlike some smaller, colder-blooded sharks that survived.]