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.).
Crabs (also known as pubic lice) are small parasites that feed on human blood. Crabs are usually found on the pubic hair, but can also be found on other parts of the body where a person has coarse hair (such as armpits, eyelashes, and facial hair). Crabs rarely infest head hair. Anyone can get crabs.