The research team's finding completely contradicts the typical understanding of how mating and sexual selection works in many species.

Under ideal conditions, sperm lives for days after ejaculation from intercourse. This article examines sperm motility and how ...

Scientists just discovered mind-blowing evidence about the origin of eggs that changes everything we thought we knew about life on Earth.

Welch said the eggs from hens that have been sex sorted using Respeggt’s system are expected to hit the U.S. market in July ...