copula - an equating verb (such as `be' or `become') that links the subject with the complement of a sentence. copulative, linking verb. verb - a content word that denotes an action, occurrence, or state of existence.
Different species of crabs eat different foods. Depending on the species, they may eat plankton, worms, shrimps, prawns and other shellfish, and they scavenge for animal and/or plant remains. 1  They are detrivores. 2  They will consume animal as well as plant matter (algae, etc.).
What do Hermit Crabs Eat. In the wild, hermit crabs act as opportunistic feeders as they eat anything they find near water. They will feed on small invertebrates along with some fish. These crabs also consume leaf litter, fallen fruits, grasses, plants, decaying wood, and worms and plankton. At times, they are also observed to eat their own poop.