All sperm are not the same. Among fruit flies the longer the reproductive tract of the female the longer the sperm. In tiny crustaceans called…
View More There Is More Than One Way To Impregnate A SquidAll sperm are not the same. Among fruit flies the longer the reproductive tract of the female the longer the sperm. In tiny crustaceans called…
View More There Is More Than One Way To Impregnate A Squid