WARSAW, Poland — A zoo in Poland says it's the first to have captured on video the birth of a rare Philippine mouse-deer, and everyone's hoping it’s a male so it can help the endangered species breed.

Following a 14-day mission aboard China’s space station, a female mouse has successfully delivered a litter of nine healthy pups back on Earth. The birth marks a major victory for space biology. As ...

Pregnancy brings a rise in pancreatic beta cells -- the cells that produce insulin. Shortly after birth, these cells return to their normal levels. The mechanisms behind this process had remained a ...