Starfish by the starfish in an escape response. The loss of parts of the body is achieved by the rapid softening of a special type of connective tissue in response to nervous signals. This type of tissue is called catch connective tissue and is found in most echinoderms. An autotomy-promoting factor has been identified which, when injected into another starfish, causes rapid shedding of arms. The lifespan of a starfish varies considerably between species, generally being longer in larger forms and in those with planktonic larvae. For example, "Leptasterias hexactis" broods a small number of large-yolked eggs. It has an adult
Pacific spiny lumpsucker females lay large, spherical, orange-colored eggs on rocks. Females typically lay around 200 eggs at a time. After the eggs are laid, the male attaches himself to a nearby surface where he cares for the eggs by defending them from predators and circulating water over them with his fin. Pacific cod, sablefish, and lancefish are known predators of pacific spiny lumpsuckers. Pacific spiny lumpsucker The Pacific spiny lumpsucker, scientific name Eumicrotremus orbis, is a species of bony fish in the Cyclopteridae family. The pacific spiny lumpsucker is a globular shaped fish that typically measures in length, with a maximum known