On an extended research visit to a friend’s lab in Tokyo, marine biologists Amy Johnson and Olaf Ellers witnessed something they’d never seen before. The starfish in Tatsuo Motokawa’s lab weren’t ...

Stars twinkle overhead, but under the sea, stars huddle together. Sea stars, that is! Sea stars (Asteroidea), commonly known as starfish, are invertebrates called echinoderms — creatures with hard, ...

Sea stars have hundreds of tiny tube feet which allow them to move using a water vascular system. This species is native to the Indian River Lagoon, as well as the coasts of Florida, the Caribbean, ...

Starfish may look simple, but their bodies are covered in thousands of tiny tube feet that give them remarkable strength and mobility. This video explores how those feet work like suction powered ...