Most people think of the gut as a digestive organ. Something that processes food, absorbs nutrients, and occasionally causes ...

Shark teeth are everywhere once people start noticing them. They turn up in fossil shops, washed along beaches, buried inside ...

Advances in imaging techniques reportedly debunks a purported "animal" fossil from long before the Cambrian explosion.

The bird retina is one of the most energetically expensive tissues in the animal kingdom, yet it doesn’t use the energy ...

More than 500 million years ago, during what is known as the Cambrian period, the seas and oceans on Earth were filled with a ...

Small reptiles in tropical forests are easy to miss until they move. A rustle against bark, a flash of skin, then something ...

This year’s Met Gala dress code was Fashion is Art – but in nature, you'll find many species that put on their own fashion show.

Scientists studying shark embryos have uncovered evidence that the basic blueprint for building faces in jawed animals has ...

A reexamination of microfossils found in the Brazilian state of Mato Grosso do Sul shows that the marks previously ...

Researchers have successfully regenerated skeletal and connective tissue, although the new tissue was not perfectly formed.

From salamanders regrowing lost limbs to sea slugs rebuilding their bodies from a severed head, the natural world is full of ...

The mouse was genetically modified to express green fluorescent protein in smell neurons. A small subset of dying neurons is ...