Giraffes have long necks, which they use to browse the leaves of trees. They also have slightly elongated forelegs, about 10% longer than their hind legs. Like nearly all mammals, a giraffe has seven neck vertebrae, which are extremely. elongated.
A crustacean is an organism that belongs to the Kingdom Animalia, Phylum Arthropoda, and in the class Crustacea. Examples of the organisms belonging to this class are lobsters, woodlice, krill, shrimp, barnacles, crayfish, and crabs.
n. pl. shellfish or shellÂ·fishÂ·es. 1. Any of various edible aquatic invertebrate animals having a shell, especially mollusks such as clams and oysters, and crustaceans such as lobsters, crabs, and shrimp.2. An edible mollusk, in contrast to a crustacean: regulations concerning fish, crustaceans, and shellfish.hellfish-meat of edible aquatic invertebrate with a shell (especially a mollusk or crustacean). mollusc, mollusk, shellfish-invertebrate having a soft unsegmented body usually enclosed in a shell. seafood-edible fish (broadly including freshwater fish) or shellfish or roe etc.