Animals “discovered” land well over 450 million years ago. Arthropods (joint-footed) are the earliest known terrestrial animals. The evidence lies in the fossilized trackways of some type of arthropod ...

CT scan of the front of a skate, showing the hard, tooth-like denticles on its skin (shown in orange). Credit: Yara Haridy CT scan of the front of a skate, showing the hard, tooth-like denticles on ...

Arthropods crawl and buzz around us in the wild and on farmlands, on the street and at home, under our floors and in our plumbing systems, even in our food and on our bodies. But while we often are ...

A new fossil find reveals that in an ancient arthropod species, no animal was an island. The discovery of 525-million-year-old fossils belonging to a new species of arthropod shows that these animals ...

Anyone who has ever squirmed through a dental cleaning can tell you how sensitive teeth can be. This sensitivity gives important feedback about temperature, pressure—and yes, pain—as we bite and chew ...