The sperm and the egg cell's nuclei compete for size directly after fertilization and this is necessary for proper embryonic ...

Columbia University Fertility Center's Star method uses artificial intelligence to detect rare sperm missed in standard tests ...

Combined with rising temperatures, chemical pollutants are obliterating animals’ chances of successfully reproducing.

Roadrunners - known for strutting around Arizona deserts and inspiring wacky cartoons - have much in common with another animal species: human beings. The shared traits are the topic of a free Monday ...