You don’t need to be an expert aquariast or maine bologist to keep these hardy fish healthy and happy.

Deep in the rain‑drenched forests of southern India, scientists climbed into old tree holes expecting to find tiny freshwater ...

The cardinal tetra is one of the most popular pet fish in the world. They look like little red and blue sequins. You've almost certainly seen them... The little pet fish that saved a town in the ...

In the Northern cardinal, both parents participate in raising their young, making them a standout example of avian biparenting. Females handle nest building, egg incubation, and brooding, while males ...

Birds are amazing parents, with many species caring for their babies until they’re ready to live on their own. They also have a unique way of feeding their babies that may sound unpleasant. The ...

A preference for pairings between male Neanderthals and female Homo sapiens may answer the question of why there are "Neanderthal deserts" in human chromosomes. When you purchase through links on our ...

Men assess potential rivals that have a larger penis as more of a threat, both physically and sexually, according to a study by Upama Aich at the University of Western Australia and colleagues, ...

Examples of the computer-generated, male figures used in our study. Men assess potential rivals that have a larger penis as more of a threat, both physically and sexually, according to a study by ...

Not only is this species new to science, but this remarkable individual is the first record of a rare biological phenomenon (bilateral gynandromorphism) in this previously unknown species. One of the ...