9781422276716

WORDS TO UNDERSTAND:

An animal that is at the top of its food chain and has no natural predators. Great white sharks, lions, and tigers are examples of apex predators. An environment created by humans that is different from an animal’s natural habitat, such as a zoo or aquarium. An animal cannot leave captivity unless a human allows it to leave. The long, slender fins on the underside of a shark’s body that operate as a shark’s “arms,” allowing them to propel themselves through the water.

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