Brontotheres, or “thunder beasts” – an extinct lineage of herbivorous rhinoceros-like mammals (though more closely related to horses) – evolved their massive multi-ton body sizes as a way to survive ...

Mass extinctions are known as times of global upheaval, causing rapid losses in biodiversity that wipe out entire animal groups. Some of the doomed groups linger on before going extinct, and a team of ...

Image usage restrictions: News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only. Evolution of cervical count and rib morphology ...