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ScienceDaily: Fossils & Ruins News |
| 3D printed replicas reveal swimming capabilities of ancient cephalopods Posted: 16 Jul 2021 06:10 AM PDT Researchers took 3-D printed reconstructions of fossil cephalopods to actual water tanks (including a swimming pool) to see how their shell structure may have been tied to their movement and lifestyle. |
| Climate regulation changed with the proliferation of marine animals and terrestrial plants Posted: 15 Jul 2021 12:38 PM PDT Earth's climate was relatively stable for a long period of time. For three billion years, temperatures were mostly warm and carbon dioxide levels high - until a shift occurred about 400 million years ago. A new study suggests that the change at this time was accompanied by a fundamental alteration to the carbon-silicon cycle. |
| A common ancestor for cells involved in hearing and touch Posted: 12 Jul 2021 12:03 PM PDT There are striking similarities in the development of two types of specialized sensory cells: the so-called 'hair cells' that receive sound vibrations in the inner ear, and the Merkel cells that sense light touch at the surface of the skin. These developmental similarities are a legacy of shared evolutionary history. |
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