Deep in ancient rock, researchers have uncovered a creature so well preserved that its brain and internal organs are still ...

Comet moths lead tragically short lives, but leave behind an incredible legacy until it's time for them to die off.

In the animal kingdom, penises can be spiked, split, corkscrewed—even detachable. They're one of the most diverse structures in biology. The human penis is so uniform, it's an anatomical outlier.

An international team of researchers has discovered a half-billion-year-old fossil with its internal organs still intact.

Elves might have highly efficient mitochondria – the tiny powerhouses inside cells that convert food into energy – allowing ...

Students at Augusta University completed a project that could help the community identify illnesses in wildlife.

It’s large and it’s complicated, but a horse’s digestive system, much like a person’s, works like a dream when it’s ...

One of the biggest mistakes you can make in life is believing that you know everything there is to know. Even if you’re ...

It used to be thought that sea urchins only had a primitive nervous system, but new research has found that they are far more complex than that. The entire body of a sea urchin is what researchers are ...

Across their 10,000 species, sea slugs sport striking colors, external gills, and even the ability to regrow a body from a severed head.