Why do we have different blood groups? - a podcast by Dr Chris Smith

We discover some likely explanations for the different blood groups seen in humans. Is there any reason for having one blood type over another? Do other animals have them too? Plus, we ask: why do horses, donkeys and zebras all make different noises? 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