Identifying the sex of animals can be difficult at first glance, depending on the species and their appearance. Lizards, ...

Monitoring the populations of one of nature's slower creatures could become faster, thanks to the University of Georgia. UGA ...

Like the males of many animal species, male Drosophila melanogaster fruit flies, a commonly studied lab animal, are ...

Off the coast of Japan, biologists netted a pea-size jellyfish with an unusual circadian clock — a chance finding that ...

Since ancient times, scientists and philosophers have pondered the fundamental question of what makes some organisms male and some female. Some hypotheses were at least plausible—Greek philosopher ...

From funky smells to crafty colors, orchids have some weird ways of attracting pollinators ...

Scientists from the Zoological Survey of India and MES Mampad College of Calicut studied the anatomy of more than a hundred ...