Sage grouse rely on one of the most visually striking courtship displays in the animal world. Males inflate large chest sacs, producing sounds and movements designed to attract selective females.

Two wombs, a forked penis, and giving birth through the nose. These are just a few of the bizarre stories circulating about ...

Tribbles aren't known for making the most soothing noise in the Star Trek franchise, but the sound itself comes from a very ...

New Horizons in a new way with Gyroid Fragments. If you're wondering how to find Gyroid Fragments, what to do with ...

The natural world is full of animals that seem to defy logic, blurring the line between reality and imagination. Some look ...

Nightingales are among the most celebrated of all animal singers, no doubt earning their place through the complexity of ...

Animals reproduce in a variety of fascinating ways. Some species, including humans and many other mammals, give birth to live young that develop inside the mother’s body. Others reproduce through less ...

The sound most commonly associated with happiness in cats—the purr—may actually reveal more about a cat’s identity, personality and mood than meowing does, a study has found.. Researchers led from ...

The evolutionary origin of sperm can be traced back to a single-celled ancestor of all living animals. Almost all animals reproduce by having a single-celled stage of their life cycle, involving two ...

Scientists have just discovered that female American crocodiles can produce offspring without males—a phenomenon known as facultative parthenogenesis, or “virgin birth." Such asexual reproduction in ...