A new study published in Science and led by Monash University biologists reveals that the energy cost of reproduction is far greater than previously believed. The research, led by Dr. Samuel C Ginther ...

TOKYO -- Sexual reproduction is essential for mammals to eliminate harmful genetic mutations that build up through cloning, a ...

Reproduction in the animal world can be complicated at the best of times. But far from the flashy birds or mammals competing for mates, a new study has revealed that, in the case of some flatworms, ...

Ducks with corkscrew penises, fish changing sex – what do we really know about sex and reproduction on Earth? Less than we ...