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 ...

Sea cucumbers (Holothuroidea) are strange, cylindrical marine invertebrates closely related to sea urchins and starfish. They have no eyes, resemble a colossal chubby worm, and use their anus for both ...

From their bizarre name to their blobby worm shape to the fact that its anus is also a mouth, sea cucumbers are some of the most outlandish things in the ocean. There are more than 1,700 species in ...

A sea cucumber, lying innocently on a bed of sand, looks kind of like a blob, and feels almost plushy. But although the creatures seem squishy and defenseless, they have evolved fascinating strategies ...