Do you ever run out of sperm?
Thanks to Rod Mitchell for the answer! Like this podcast? Please help us by supporting the Naked Scientists
Why haven't crocodiles changed?
enMay 09, 2010
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About this Episode
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
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