A new fossil unearthed in Madagascar suggests that a cat-sized mammal that’s been nicknamed “crazy beast” coexisted with the dinosaurs.
The discovery of the 66-million-year-old fossil challenges previous assumptions that mammals would have had to be very small – the size of mice – in order to survive alongside dinosaurs.
Scientists think that the badger-like animal, known as adalatherium, would have burrowed, helping it to evade predatory dinosaurs.
This could explain how it evolved to such a big size.
The find will help scientists understand how mammals developed into the diverse array of species that we see today.