O que as escamas dos tubarões têm a ver com seus - e os nossos! - dentes? Descubra no episódio novo do Minuto da Terra! https://t.co/aWJtBW1AcM https://t.co/z6g3BBrzip
The ins and outs of the evolutionary origin of teeth.
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Extended reach
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Jan 2020 – Jul 2025Where it's discussed
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X / Twitter19 posts
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Facebook3 posts
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Bluesky2 posts
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YouTube2 videos
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News2 articles
AI synopsis
What people are saying
The overall sentiment reflects strong interest and deep engagement, with examples such as posts explaining the evolutionary connection between shark scales and human teeth, and mentions of new scientific evidence challenging earlier theories. Words like 'surprising', 'fascinating', and references to 'evidence' and 'evolutionary origin' contribute to the perception that this discussion has meaningful scientific implications and strong curiosity about the topic.
Most discussions acknowledge the article's challenge to previous theories and support the idea that teeth and dermal denticles share a common origin, reflecting general agreement with the publication’s conclusions.
High interest is evident as participants discuss surprising facts about sharks, their teeth being widespread, and the evolution of teeth, indicating curiosity and engagement with the scientific content.
Posts show deep engagement by referencing scientific concepts like convergent evolution, evolutionary pathways, and fossil evidence, as well as sharing links to papers and detailed explanations.
The talks have moderate impact, as they raise awareness of evolutionary biology debates, challenge common misconceptions, and promote understanding of vertebrate evolution, which could influence public perception and further scientific discussion.
Abstract in brief
- The origin of teeth is debated, with two main hypotheses: one that teeth evolved externally from dermal denticles (outside-in) and another that they developed independently inside the mouth (inside-out).
- Recent evidence suggests that teeth likely evolved once within the jawed vertebrates and that their development involves complex processes from both dermal and endodermal tissues, challenging earlier claims that teeth and dermal denticles have entirely separate origins.
- Developmental and fossil studies now indicate that teeth appeared later in vertebrate evolution than dermal denticles, and many structures previously thought to be related to teeth evolved independently, weakening the inside-out theory and supporting a single origin of teeth.
Top posts
Most liked on X and BlueskyO Minuto da Terra vai te levar em uma jornada de volta no tempo para mostrar como nossos ancestrais vertebrados foram responsáveis pelos nossos dentes - e o dos tubarões! https://t.co/aWJtBWjb4k https://t.co/o5DjYH5gDr
"Why Sharks Are Covered In Teeth" https://t.co/AUWu45sfAG https://t.co/6loV8XdPdi
Você sabia que tubarões têm DENTES pelo corpo inteiro?! https://t.co/aWJtBW1AcM https://t.co/VvcgSwMmWP
VÍDEO NOVO! Tubarões são famosos pelos seus dentes - não pelas suas escamas. Mas as escamas dos tubarões têm muito mais em comum com seus dentes - e com os nossos - do que você imagina! https://t.co/aWJtBW1AcM
Tá aí uma coisa que eu aposto que você não sabia: a origem e evolução dos nossos dentes e a relação deles com escamas de tubarões. Clica aí https://t.co/enkxwbGM44 https://t.co/4yRg6wkeeO
All mentions
Evolutionary Origins of Teeth in Jawed Vertebrates Explained
The origin of teeth involves complex processes from dermal and endodermal tissues. Recent evidence supports a single evolutionary origin within jawed vertebrates, challenging earlier theories of separate development…
Evolution of Shark Teeth and Dermal Denticles Explained
Sharks' fierce teeth are linked to their ancient scales called dermal denticles, which are similar to teeth. Recent research suggests a single origin of teeth within jawed vertebrates, involving complex developmental…
Early Vertebrate Diversification in Nearshore Habitats
A discussion of The Lampreys Tale in Richard Dawkins and Yan Wong's book The Ancestors Tale. The study highlights the importance of shallow, nearshore environments in early vertebrate evolution, demonstrating how…
@Ethanzilla1984 @omegafreelancer Refs: https://t.co/PUI8n7xR2H https://t.co/ukMSSBuEg9 https://t.co/ZcLYD76302
Por que tubarões têm dentes por todo o corpo | Minuto da Terra youtu.be/JafOEfjqIMY?... via @YouTube
Por que tubarões têm dentes por todo o corpo | Minuto da Terra https://t.co/Di2WS5buV5 via @YouTube
Teeth are just fancy scales youtu.be/ltekTswx3Ug?...
これ面白い(自動翻訳で視聴) →Why Sharks Are Covered In Teeth https://t.co/PPHZulYhKI @YouTubeより
"Why Sharks Are Covered In Teeth" https://t.co/AUWu45sfAG https://t.co/6loV8XdPdi
@gothspiderbitch @raindegrey More like scales. https://t.co/D5w4WaXivh
Por que tubarões têm dentes por todo o corpo | Minuto da Terra https://t.co/eYO14QBj7d via @YouTube
Você sabia que tubarões têm DENTES pelo corpo inteiro?! https://t.co/aWJtBW1AcM https://t.co/VvcgSwMmWP
O Minuto da Terra vai te levar em uma jornada de volta no tempo para mostrar como nossos ancestrais vertebrados foram responsáveis pelos nossos dentes - e o dos tubarões! https://t.co/aWJtBWjb4k https://t.co/o5DjYH5gDr
O que as escamas dos tubarões têm a ver com seus - e os nossos! - dentes? Descubra no episódio novo do Minuto da Terra! https://t.co/aWJtBW1AcM https://t.co/z6g3BBrzip
Tá aí uma coisa que eu aposto que você não sabia: a origem e evolução dos nossos dentes e a relação deles com escamas de tubarões. Clica aí https://t.co/enkxwbGM44 https://t.co/4yRg6wkeeO
VÍDEO NOVO! Tubarões são famosos pelos seus dentes - não pelas suas escamas. Mas as escamas dos tubarões têm muito mais em comum com seus dentes - e com os nossos - do que você imagina! https://t.co/aWJtBW1AcM
Why Sharks Are Covered In Teeth https://t.co/Fbt8WesjUb via @YouTube
I liked a video on YouTube: Why Sharks Are Covered In Teeth https://t.co/j1ydIqufG0
おもろい→Your Teeth Are Actually Scales https://t.co/PPHZumfkMI @YouTubeより
Your Teeth Are Actually Scales https://t.co/26eFBL2JaP via @YouTube "denticle"
@GlennJaecks Here is an open access paper that I just found! https://t.co/8s32SXv3ot
RT @nik_short: @PdraicFlood The evolutionary origins of teeth is one of my favorite examples of convergent evolution. https://t.co/xLisQw…
@PdraicFlood The evolutionary origins of teeth is one of my favorite examples of convergent evolution. https://t.co/xLisQwSVr6 https://t.co/bDtml8u3tI
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