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Mice evolve better, not bigger, balls in sperm race
Size isn't everything. When many male mice mate with the same females, their descendants evolve testes that can produce more sperm
Size isn't everything. When many male mice mate with the same females, their descendants evolve testes that can produce more sperm
Source: New Scientist
Posted on: Friday, Jan 23, 2015, 10:36am
Views: 1151
Posted on: Friday, Jan 23, 2015, 10:36am
Views: 1151
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