In a major breakthrough for space research, mice that spent two weeks aboard China’s Tiangong space station have returned to ...

Seals give birth only when conditions are right. After mating, a female seal can delay implantation of the embryo in the ...

Animals reproduce in a variety of fascinating ways. Some species, including humans and many other mammals, give birth to live ...

Scientists are studying Nectophrynoides frogs that give birth to live young. This unique reproductive method helps them survive in dry forests. These ...

An international research team, including scientists from the Max Planck Institute for Evolutionary Anthropology in Leipzig, ...

Scientists may finally have an explanation for the longstanding mystery of why blue whale calves are rarely sighted, an ...