Science September 2014 PMID 25213375

Semiaquatic adaptations in a giant predatory dinosaur.

Nizar Ibrahim, Paul C Sereno, Cristiano Dal Sasso, Simone Maganuco, Matteo Fabbri, David M Martill, Samir Zouhri, Nathan Myhrvold, Dawid A Iurino

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Mentions

252
Peak: 21 in Sep 2025
across 6 sources since Nov 2020

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739,610
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AI synopsis

What people are saying

Posts reflect a keen interest in the unique semi-aquatic features of Spinosaurus, with phrases like 'expanded our understanding' and 'specialized adaptations' emphasizing the importance of the findings. Several comments highlight technical details such as limb structure and skeletal features, demonstrating genuine engagement with the research. Conversely, some posts mention ongoing debates about taxonomy and future revisions, showing curiosity about broader scientific impact.

AgreementNeither agree nor disagree

The posts display a mix of support and neutrality; some acknowledge the relevance of the research without extensively endorsing all conclusions.

InterestNeutral interest

Discussion shows high curiosity about the adaptations and implications, with several posts referencing specific features like limb structure and aquatic abilities.

EngagementNeutral engagement

The comments include mentions of ongoing research, anatomical details, and references to further readings, indicating moderate active analysis.

ImpactNeutral impact

Participants perceive the publication as meaningful within their field, though some call for revisions or further studies, suggesting a positive but cautious view on its influence.

Abstract in brief

  • Spinosaurus aegyptiacus shows specialized adaptations for a semi-aquatic lifestyle, such as retracted nostrils near the midregion of the skull and an elongated neck and trunk that shift its center of mass forward.
  • Its pelvis is smaller, hind limbs are short, and limb bones are solid, which contrasts with terrestrial dinosaurs and aids in aquatic movement and buoyancy.
  • Features like a short, robust femur, specific pedal claws, and possible skin-covered dorsal sail suggest adaptations for aquatic locomotion and display behaviors both on land and in water.

Top posts

Most liked on X and Bluesky
加藤ひろし / 恐竜のお兄さん
@Hiro_DinoPaleo · X

主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 https://t.co/dRgyxNjaKB)、 「水中にいる獲物を捕らえる際に機能しただろう」と考えられています(Hone and Holtz 2017 https://t.co/k4yjNFunWp https://t.co/pecS0LnAMW

Sep 2, 2025 · 72 likes · 21 shares · 4,927 followers View post →
Ole Zant
@thebiobob.bsky.social · Bluesky

A century later a similar partial skeleton was uncovered in Morocco. Work on this specimen is still ongoing but it expanded our understanding of the animal in that it preserved very short hindlimbs and a tall (and very long) tail.

Mar 2, 2025 · 15 likes · 2 shares View post →
冠龍 諸々を執筆中
@Guanlong_wucaii · X

#恐竜復元教室スピノサウルス編 "Semiaquatic adaptations in a giant predatory dinosaur" (Nizar Ibrahim, et al. 2014) ・骨盤がやや縮小気味 ・四肢の骨の緻密化(含気化しない) ・短く頑丈な大腿骨と肥大した屈筋付着部 ・低く平底な末節骨 が水辺での生活を示唆? https://t.co/SKJT7KSw1u https://t.co/gVLXb0j1sq

Jul 20, 2025 · 14 likes · 4 shares · 2,148 followers View post →
Matteo Fabbri
@tetaneuron · X

@pilgrimcetus_ I am well aware of the manuscript, which is cited in the more recent study: Tito and Aline contacted me to collaborate on their manuscript in 2018, because of the preliminary work on bone density in this manuscript https://t.co/mNDbYO11u0

Mar 24, 2022 · 13 likes · 2,454 followers View post →
Lucas Kias |
@lucaskias · X

Aqui são algumas fontes que usei para fazer esse pequeno fio sobre o desenho: • doi:10.1016/j.cretres.2020.104520 • doi:10.1126/science.1258750 • doi:10.2113/173.5.415

Jul 26, 2021 · 4 likes · 5,407 followers View post →
Neptune
@neptune_x8 · X

المصدر: https://t.co/jtmNEaGaYK

Oct 27, 2023 · 3 likes · 5,013 followers View post →

All mentions

すくでっど+腕腹筋数学がんばる
@KnJhehduurbrnf · X

RT @Guanlong_wucaii: #恐竜復元教室スピノサウルス編 "Semiaquatic adaptations in a giant predatory dinosaur" (Nizar Ibrahim, et al. 2014) ・骨盤がやや縮小気味 ・四肢…

Sep 26, 2025 · 4 shares · 638 followers View post →
k dino spino
@Spinosann · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 4, 2025 · 21 shares · 417 followers View post →
ながぴい
@Nagapiii · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 3, 2025 · 21 shares · 2,519 followers View post →
Makoto Shirasaki
@MakotoShirasaki · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 3, 2025 · 21 shares · 1,054 followers View post →
VictoriasSedgeFields
@Victor_Sedge · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 3, 2025 · 21 shares · 1,819 followers View post →
ちゃぎょ@DM返信停止中・詳しくはbioと固定へ
@namamono_aqua · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 3, 2025 · 21 shares · 111 followers View post →
サツバシ幻葉
@genha5 · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 2, 2025 · 21 shares · 2,411 followers View post →
YAMA
@yomagntho9q9q · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 2, 2025 · 21 shares · 488 followers View post →
なんしーとかパキPとか
@hermitnanc · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 2, 2025 · 21 shares · 652 followers View post →
Junsei
@Junsei2019 · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 2, 2025 · 21 shares · 187 followers View post →
"Jules " y.i.n.
@yococco · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 2, 2025 · 21 shares · 301 followers View post →
マチカネ
@wolf_earth · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 2, 2025 · 21 shares · 2,340 followers View post →
ワニガメコング
@vQGrdWDxuktjA2E · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 2, 2025 · 21 shares · 4,007 followers View post →
しろいっく
@BlackSaboikku · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 2, 2025 · 21 shares · 60 followers View post →
kkkkk.n
@kkkkkn21105005 · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 2, 2025 · 21 shares · 35 followers View post →
Spinoりん
@Spino_Rin · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 2, 2025 · 21 shares · 1,848 followers View post →
インペリアルコンボイ
@RYOTAHAGA · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 2, 2025 · 21 shares · 4,037 followers View post →
VxMZv2VlEvZ7woJ
@VxMZv2VlEvZ7woJ · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 2, 2025 · 21 shares · 406 followers View post →
ヌコスキー
@yQIBfuXZABWJHcv · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 2, 2025 · 21 shares · 394 followers View post →
罪憑き
@tumi_tuki · X

RT @Hiro_DinoPaleo: 主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 h…

Sep 2, 2025 · 21 shares · 423 followers View post →
加藤ひろし / 恐竜のお兄さん
@Hiro_DinoPaleo · X

主に魚を食べていたと考えられている恐竜の中でも特に人気があるスピノサウルスの口先にも神経孔が沢山あり(Dal Sasso et al. 2005 https://t.co/RHB0APcRqH; Ibrahim et al. 2014 https://t.co/dRgyxNjaKB)、 「水中にいる獲物を捕らえる際に機能しただろう」と考えられています(Hone and Holtz 2017 https://t.co/k4yjNFunWp https://t.co/pecS0LnAMW

Sep 2, 2025 · 72 likes · 21 shares · 4,927 followers View post →
ビクーピー
@B47197246 · X

RT @Guanlong_wucaii: #恐竜復元教室スピノサウルス編 "Semiaquatic adaptations in a giant predatory dinosaur" (Nizar Ibrahim, et al. 2014) ・骨盤がやや縮小気味 ・四肢…

Jul 22, 2025 · 4 shares · 1,896 followers View post →
すくでっど+腕腹筋数学がんばる
@KnJhehduurbrnf · X

RT @Guanlong_wucaii: #恐竜復元教室スピノサウルス編 "Semiaquatic adaptations in a giant predatory dinosaur" (Nizar Ibrahim, et al. 2014) ・骨盤がやや縮小気味 ・四肢…

Jul 20, 2025 · 4 shares · 638 followers View post →
冠龍 諸々を執筆中
@Guanlong_wucaii · X

#恐竜復元教室スピノサウルス編 "Semiaquatic adaptations in a giant predatory dinosaur" (Nizar Ibrahim, et al. 2014) ・骨盤がやや縮小気味 ・四肢の骨の緻密化(含気化しない) ・短く頑丈な大腿骨と肥大した屈筋付着部 ・低く平底な末節骨 が水辺での生活を示唆? https://t.co/SKJT7KSw1u https://t.co/gVLXb0j1sq

Jul 20, 2025 · 14 likes · 4 shares · 2,148 followers View post →
Ole Zant
@thebiobob.bsky.social · Bluesky

A century later a similar partial skeleton was uncovered in Morocco. Work on this specimen is still ongoing but it expanded our understanding of the animal in that it preserved very short hindlimbs and a tall (and very long) tail.

Mar 2, 2025 · 15 likes · 2 shares View post →
Neptune
@neptune_x8 · X

المصدر: https://t.co/jtmNEaGaYK

Oct 27, 2023 · 3 likes · 5,013 followers View post →
Ole Zant
@TheBioBob · X

@Diplodoken @AGamingBeaver The image is from this video: https://t.co/ugnlpnqf3l And if you'd like to read more about it there were two papers published that discussed it: https://t.co/EOcZI6effu and https://t.co/RgMVCVvJib

Apr 17, 2023 · 1 like · 5,158 followers View post →
TheGloriousKingKronk
@GloriousKronk · X

@Deform2022 @LumpySpirit @Paleoartologist https://t.co/34xlpel9HC https://t.co/6dCNDMZt22 https://t.co/iwIDkOT3ti https://t.co/iwIDkOT3ti There are still specimens not referred to Spinosaurus aegyptiacus, but the majority have been assigned to it now. I maintain that NA theropod taxonomy needs a revision.

Feb 7, 2023 · 262 followers View post →
Matteo Fabbri
@tetaneuron · X

@pilgrimcetus_ I am well aware of the manuscript, which is cited in the more recent study: Tito and Aline contacted me to collaborate on their manuscript in 2018, because of the preliminary work on bone density in this manuscript https://t.co/mNDbYO11u0

Mar 24, 2022 · 13 likes · 2,454 followers View post →
Lucas Kias |
@lucaskias · X

Aqui são algumas fontes que usei para fazer esse pequeno fio sobre o desenho: • doi:10.1016/j.cretres.2020.104520 • doi:10.1126/science.1258750 • doi:10.2113/173.5.415

Jul 26, 2021 · 4 likes · 5,407 followers View post →