Animals - The Anatomy of Fish, Insects, etc.

any of the sharp curved organs of an arthropod or insect, such as a crab, lobster, etc.

the hard outer covering that supports the body of an animal, such as an arthropod

the poisonous substance produced by some snakes, scorpions, or spiders to kill their prey or to defend themselves from predators

the posterior part of a fish or aquatic animal's body, composed of fins that provide propulsion and maneuverability