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What Is Marine Biology?

arine means having to do with the seas. Biology is the study of life. So marine biology is the study of life in the oceans. These scientists do study the animals of the sea, but they also study the world those animals live in. A branch of science called oceanog- raphy focuses on the water itself, but marine biologists have to make

At sea aboard a research ship, a scientist carefully examines samples of krill, a tiny fish that is an important food source for whales. Marine biologists often do their work aboard ships like this one.

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