The scientific wonderers at What If travel back to the age of mammals to see how our planet recovered after the death of the dinosaurs.

A remarkable new discovery is shedding light on one of the greatest survival stories in Earth's history, and answering a decades-old scientific mystery. Lystrosaurus, a hardy, plant-eating mammal ...

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment. Rachael has a degree in Zoology from the ...

Menopause happens when the older females of a species remain physically capable of contributing to their group’s survival, even as their ovarian follicles become depleted. This is a rare occurrence ...

"We took mammal food webs across sub-Saharan Africa to see if we could combine multiple local observations into a highly generalizable analysis that could help us better understand both environmental ...

The researchers compared a jaw fragment from Galanthis baskini (top) to a complete mandible of the least weasel (bottom). A European cent is shown for scale.

Two of the study's co-authors, Mark Clementz and Carolina Gutstein, are pictured with an outcrop bearing whale fossils.