Sea cucumbers are marine invertebrates that live on the seafloor. They're named for their unusual oblong shape that resembles a fat cucumber. Although people occasionally eat sea cucumbers, these ...

Few animals seem less animal-like than sea cucumbers. The long, slender beings often appear motionless like the vegetable they resemble as they bask on the seafloor. They lack a brain, eyes or obvious ...

These spiny or slimy ocean creatures display an astonishing diversity of appearances, behaviors and lifestyles—and many are increasingly threatened Katarina Zimmer, Knowable Magazine Sea cucumbers ...