Why haven't crocodiles changed? - a podcast by Dr Chris Smith

Crocodiles have been the same for millennia upon millennia. What's going on? Why are they so uneventful in terms of evolution? Plus, we ask why we have different blood types. Like this podcast? Please help us by supporting the Naked Scientists

Further episodes of Question of the Week, from the Naked Scientists

Further podcasts by Dr Chris Smith

Website of Dr Chris Smith