Vocabulary Words Lesson Five

Echolocation   A sensory system in certain animals, such as bats and dolphins, in which usually high-pitched sounds are emitted and their echoes interpreted to determine the direction and distance of objects.        

Hibernate    To be in an inactive or dormant state or period usually in the winter.           

Migrate     To move from one country or region and settle in another.          

Mammal    a warm blooded animal that nourishes their young with milk       

Endangered    To expose to harm or danger. To threaten with extinction.