Date Time Flexible brains make for right fit Being squeezable may be the key to finding space for the brain in mammals, including humans, according to new research. An international study, co-led by Flinders University’s Dr Vera Weisbecker, has revealed that marsupial mammals like possums, kangaroos, and wombats appear to have a lot of flexibility when it comes to accommodating their brains into their skulls. “The brain is one of the heaviest parts of the head, particularly in smaller mammals. But it needs to be placed in a way that doesn’t interfere with the many vital functions of the head, such as seeing, hearing, smelling and of course feeding,” says Dr. Weisbecker.