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Whales are also mammals. The killer whale is called an orca, and an orca is actually a very large dolphin. They are famous because of Shamu and Sea World. Orcas are also carnivores and mainly eat seals but will eat other whales, sea lions, and walruses.

Orcas

Dolphins also live in pods and

are very social. They communicate using clicks, whistles, and sonar. Do you remember what sonar is? Sonar is the way in which bats could “see” in the dark. They let out a high pitched sound and it bounces off an object – allowing the bat to feel the sound waves and know that an

object is close by.

Simple Schooling "Let's Learn About" Bugs, Mammals, & Reptiles ©2011 J. Anne Huss

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