Scientists suggest female frogs listen for changes in the male calls as a signal for when it's warm enough to mate.

Here are 10 animals that have some of the highest levels of testosterone and the impact it has on their behavior and characteristics.

Octopus mothers slam themselves against rocks and eat their own arms before their eggs hatch. Scientists have discovered what leads to the self-destruction.

Male green treefrogs attract mates with loud calls, but new research shows parasites can subtly change those signals.

Few animals are more majestic than those bearing a crown of antlers. Moose bear these head adornments particularly well; they ...

A new study on mayflies of the genus Ecdyonurus illustrates just how multifaceted and surprising reproductive behavior in ...

Not all fish play by the same reproductive rules. Evolutionary biology reveals how deception became a successful mating ...

Across the animal kingdom, sound is more than communication—it's a signal of survival and success. From birds and primates to ...

Researchers found a rare, strictly binary brain feature in mice that is permanently active in females but completely dormant ...

Across the U.S. between 1 and 2 million large animals are involved in vehicle collisions each year, according to the Federal Highway Administration.

Mumbai: A father and son were injured in a leopard encounter near Kurar village adjoining Sanjay Gandhi National Park were ...

Every state has regulations, but few of these strange animal laws feel essential.Some exist to protect animal welfare, others to shield people, and some are so oddly specific you can’t help but wonder ...