Mammals
An animal with a backbone, hair or fur, and milk-producing glands to feed its young
Sound Waves
Vibrations transmitted through substances in waves with frequencies that can be heard
Echolocation
In certain animals, such as dolphins and bats, a system in which sound waves are sent out and their echoes interpreted to determine the direction and distance of objects
Density
The quantity of matter in a given unit of volume
Language
A system of signs or sounds that refer to objects or ideas and that can be combined in different ways to produce different meanings
While dolphins resemble fish, they are actually _________________.
Mammals
Dolphins send out _______________ from their heads and receive them in their lower jaws.
Sound waves
Through ________________, dolphins can identify objects in the environment.
Echolocation
What is a dolphin's signature whistle?
A unique sound that identifies that particular dolphin
How does echolocation work?
By bouncing sound waves off objects in the environment