Protecting animals against environmental changes, poachers, and other dangers is vital yet challenging work. And in recent ...

More mammals were living on the ground several million years before the mass extinction event that wiped out the dinosaurs, ...

The investigators, headed by Professor Christine Janis, used fossil bones of marsupials and placental mammals excavated in Western North America, the only place with a good representation of ...

By analysing small-fossilised bone fragments, specifically end of limb bones, from marsupial and placental mammals found in Western North America - the only place with a well-preserved terrestrial ...

Looking specifically to fragments of limb bones, Janis and her team found that many therian mammals, or mammals from the marsupial and placental branches of the mammalian family tree, were starting to ...

CREDIT: Chester et al. 2025 “This fossil skeleton provides new evidence concerning how placental mammals diversified ecologically following the extinction of the dinosaurs,” study co-author ...