In lieu of a penis, the male has a special mating arm called a hectocotylus. In a new study published today in Science, ...

Ducks with corkscrew penises, fish changing sex – what do we really know about sex and reproduction on Earth? Less than we ...

French bulldogs are already little sweethearts, but JoeJo has both a sweet personality and an unusually soft and fluffy coat ...

Description: Unlike lots of other animals, there’s no such thing as the “mating season” for humans, and it might have to do ...

Explosive breeding brings frogs and salamanders together in vernal pools for a brief, frantic window. Learn how it works.

Salamanders leave their underground habitats to cross roads every spring to find a safe place to breed and lay eggs.

A cheerful chirping is part of everyday life with pet birds–but what if the familiar sounds suddenly become a persistent, piercing whistle or call? There may be more behind the unusual volume than ...

Carl Wilson goes out three to five days a week photographing and filming wildlife, sometimes for a few hours and occasionally ...

Maine contains one of the most extensive continuous forest systems in the eastern United States. The scenic landscape ...

Modern Nautilus and Allonautilus species inhabit deeper waters than their extinct ancestors did over 500 million years ago.

The Cornell Lab of Ornithology adds that courting males, known as toms, can behave more aggressively during the spring ...

Residents of three Southern states are urged watch for aggressive non-native, yellow-legged hornets that prey on defenseless ...