Have you ever gazed into a dazzling aquarium or watched a wild river teeming with life and thought, “Look at all those fish!” ...

Footprints of tail-clubbed armored dinosaurs, ankylosaurids, have been discovered for the first time, thanks to fossil ...

Complex neural circuits likely arose independently in birds and mammals, suggesting that vertebrates evolved intelligence ...

Tracking units on the shell of a wood turtle. The tracking information these GPS units collect is used to understand how wood turtles move throughout the year. Image credit: Smithsonian's Movement of ...

It explains that fish are vertebrates with gills, scales, and various adaptations for movement and survival, while invertebrates, like jellyfish and starfish, lack backbones. There are three main ...