OZARK, Mo. — An endangered Ozark hellbender raised by the Saint Louis Zoo has successfully reproduced within the Current River. This is a significant milestone in the recovery efforts of the species, ...

This video uncovers the fascinating truth behind animals that can reproduce without any involvement from males. Scientists explain how these rare species use a process known as parthenogenesis to ...

Find out which animals live the longest and what clues this gives us for potentially slowing down human aging.

For 35 years, American zoologist Laurie Marker has been collecting and storing specimens in a cheetah sperm bank in Namibia, ...