Mammals ‘Put Brawn Before Brains To Survive The Post-Dinosaur World’

For the first 10 million years after dinosaurs died out, mammals prioritized boosting their body size to adapt to radical shifts in the makeup of Earth’s animal kingdom, according to new research. (Steve Chatterley/Zenger)

Mammals put brawn before brains to survive the post-dinosaur world, according to new research.

Prehistoric mammals bulked up, rather than develop bigger brains, to boost their survival chances once dinosaurs had become extinct and were “fairly dim-witted” compared to mammals today, say Scottish scientists who led the study.