タイトルまたは説明

Sea cucumbers are part of a larger animal group called echinoderms, which also contains starfish and sea urchins. Their body shape is similar to a cucumber, but they have small tentacle-like tube feet that are used for locomotion and feeding. One way that sea cucumbers can confuse or harm predators is by propelling their own toxic internal organs from their bodies in the direction of an attacker. The organs grow back, and it may save them from being eaten. Depending on the species, sea cucumbers normally vary in size from less than an inch (2.5 centimeters) to over six feet (1.8 meters).