9781422276754

WORDS TO UNDERSTAND:

The home or natural environment of an animal, person,

or plant.

A scientist who studies the plant and animal

life of the ocean.

An animal that hunts other living things. An animal that is hunted by other animals.

A special device marine biologists place on marine animals that allows the animals’ movements to be tracked. This device sends signals to a satellite in space. The satellite then returns the messages to a computer monitored by marine biologists. This allows the scientists to learn valuable information about the animals’ habits.

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