A number made up of all members of the same species living within a given area.

All the physical surroundings on Earth. Contain living and nonliving things.

The dying out or disappearance of a species from Earth.

The actions of a person, animal, or thing in general or certain situations.

A special skill which helps an animal to survive and do everything it needs to do.

Something an animal does that helps it to survive.

Something about the animal’s body that helps it to survive.

A behavior that an animal is born with

An animal’s color that helps it blend into its environment

An automatic reaction to something.

Something an animal is taught to do.

When an animal goes into a deep, winter sleep.

A long journey that animals make when the seasons change

When an animal copies another in appearance.