Our skeleton is kind of strange. Most of it forms from the same tissue that makes things like our muscle and connective tissue. The exception is a big chunk of our face, like the jaws and nasal ...

The sympathetic nervous system was thought to have evolved with jawed vertebrates. But lampreys—jawless, parasitic fish that suck out the blood of their hosts—have a simple one, per recent research.

A huge step forward in understanding how neurons communicate through extremely short proteins called neuropeptides will help scientists understand how our emotions and mental states are controlled, as ...

Every other Friday, the Outside/In team answers one listener question about the natural world. This week, Monica in West Hartford, CT asked, “We’ve all heard the phrase, ‘take a deep breath,’ and ...

Neural crest cells are involved in the development of osteoderms (like those in crocodiles) and the plastrons of turtles, so it seems likely. Some sources say they're behind virtually all ...

This huge step forward in understanding how neurons communicate through extremely short proteins called neuropeptides will help scientists understand how our emotions and mental states are controlled, ...