REWARDS S Ls 13

Front

century

Back

A century is 100 years.

Front

migrate

Back

When birds, fish, or animals migrate, they move from one place to another, usually during a particular season, to find a place for breeding or to find food.

Front

populate

Back

If people or animals populate an area, those people or animals live there, often in large numbers.

Front

survive

Back

If you survive in difficult circumstances, you manage to live or continue.

Front

predator

Back

A predator is an animal that kills and eats other animals (its prey).

Front

balance

Back

A balance is a situation in which all the parts are equal in strength or importance.

Front

appear

Back

If someone or something appears, they become visible or come into your sight.

Front

caribou

Back

Caribou are members of the deer family related to reindeer and elk.

Front

Porcupine Caribou

Back

Named after the Porcupine River.

Front

ecosystem

Back

An ecosystem includes all the plants and animals that live in a certain area along with the relationships they have with each other and with their environment.