Mammals put brawn before brains to survive post-dinosaur world
For the first 10 million years after dinosaurs died out, mammals prioritised boosting their body size to adapt to radical shifts in the make-up of Earth's animal kingdom, researchers say.
A team from the University of Edinburgh has shed light on the mystery by performing CT scans on newly discovered fossils from the 10-million-year period after the extinction, called the Paleocene. Lead researcher Dr Ornella Bertrand, of the University of Edinburgh's School of GeoSciences, says:"Large brains are expensive to maintain and, if not necessary to acquire resources, would have probably been detrimental for the survival of early placental mammals in the chaos and upheaval after the asteroid impact."
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