Vertebrates and invertebrates have similar sets of glial cells that perform comparable functional tasks. A hallmark of all glial cells is their pronounced migratory ability. Glial cells in the PNS and ...

There are millions of different types of living things on Earth. In order to keep track of them all, scientists put living things into groups based on characteristics that they have that are the same.

The state fossil of Illinois is a strange creature with stalked eyes and a long nose-like appendage with teeth, dubbed the “Tully monster.” Specimens typically measure just 15 centimeters (about 6 ...