For over half a billion years, evolution has sculpted the nervous systems of bilaterian animals, equipping them with remarkable capabilities to process information, coordinate movements, and respond ...

Some very diverse neurological systems have evolved in animals, like those carried by cephalopods, compared to those found in humans. But scientists have now found an interesting commonality: many ...

Deep in ancient rock, researchers have uncovered a creature so well preserved that its brain and internal organs are still visible more than half a billion years later. The fossil, dating back roughly ...

Researchers propose that placozoans, one of the simplest kinds of animals, may contain the blueprint for the neurons of more complex creatures. By Sam Jones For hundreds of millions of years, ...

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.

For hundreds of millions of years, pancake-shaped animals the size of a needle tip have been roving the seas with an appetite for tasty microbes and algae. They’re called placozoans, and are among the ...