Why Most Shark Species Don’t Survive Their First 4 Million Years

A study of shark evolution across deep time has revealed that these ancient fish are not as extinction-proof as we once thought. Also in the news this week: the interstellar visitor 3I Atlas made its closest approach to Earth, a lemon-shaped planet has been discovered, and much more!

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📜 Credits:
Presented by Ben G Thomas
Written by Ben Thomas, Douglas James and Nicky Thomas
7 Days of Science is produced by Douglas James and Ben Thomas
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Sources:
How sharks respond to extinction events:
https://royalsocietypublishing.org/rs...
https://oceanographicmagazine.com/new...

Gastroliths in hatchling Psittacosaurus:
https://link.springer.com/article/10....

Closest approach of 3I Atlas:
https://apnews.com/article/interstell...
https://www.sci.news/space/nasas-park...

A lemon-shaped planet:
https://iopscience.iop.org/article/10...
https://www.discovermagazine.com/weir...

Rejuvenating immune cells with mRNA treatments:
https://www.nature.com/articles/d4158...
https://www.nature.com/articles/s4158...

Whale breath viruses:
https://link.springer.com/article/10....
https://oceanographicmagazine.com/new...

Chapters:
0:00 - Headlines
0:57 - Shark extinctions over deep time
4:30 - Gastroliths in hatchling Psittacosaurus
5:52 - Closest approach of 3I Atlas
7:04 - A lemon-shaped planet
8:42 - Rejuvenating immune cells
10:16 - Whale breath viruses
11:58 - Outro