Un scan de haute précision d’un embryon fossilisé de thérapside révèle l’œuf le plus ancien attribué à un ancêtre des mammifères.
- Professor, University of the Witwatersrand
A detailed scan of a fossil therapsid embryo reveals the oldest egg belonging to a mammalian ancestor.
The analysis suggests that there was a mass extinction event at the time of the end-Permian, on land - and that it happened at the same time as the marine end-Permian extinction.
How did survivors of the Permo-Triassic Mass Extinction adapt to their new, harsh environment? And why is that knowledge so important for modern species?
There are more than 5,000 species of mammals alive today and most people would argue that they are some of the most successful animals on Earth. But our research, published today, suggests that some mammals…
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