A method used by some animals to find their own position or to locate prey.

The third section of an insects body, behind the head and thorax.

A group of fish that have jaws.

Development of special features or behaviour in order to survive in a particular habitat. Well suited to a particular way of life.

An animal that becomes inactive in order to survive long periods of drought as in some reptiles and amphibians.

A group of fish that do not have jaws.

A type of cephalopod that has a long spiral shell.

Cold-blooded vertebrate animals that live in water as larvae and mostly on land as adults but return to the water to breed.

A form of pseudocopulation in which a male amphibian grasps a female with his front legs as part of the mating process. At the same time or with some time delay, he fertilizes the female eggs with flu [..]

Gripping projections located at the end of the body in caterpillars and male dragonflies.