Marine biology is the study of any living plant or animal in the sea. Marine biologists study it. Like other scientists, marine biologists must know a lot about the creatures they are studying. They also must understand how the sea works. The study of how the sea works is oceanography.
A marine biologist needs a bachelor's degree in biology, followed by at least an MSc in marine biology.
The ocean is large and marine biologists work in many subfields like invertebrate zoology, ichthyology, and physiology. Others study physical traits like scales, eyes, or shells.
During the Age of Discovery many ships sailed far from home. Captain James Cook went twice around the world and discovered new places. Another person who helped is Charles Darwin, known for the Theory of Evolution. He worked in marine biology. His expeditions aboard the HMS Beagle from 1831–1836 collected marine organisms. Several other people also made important voyages. Alfred Russel Wallace spent much of his younger life travelling the world and recording the plants and animals he saw.
Marine animals include squids, corals, whales and fish. Marine plants include sea grasses and algae. The Census of Marine Life was a ten-year project of marine biology. Like land animals, marine animals have been evolving for hundreds of millions of years, [1] thus trilobites and ammonites are no more, but now there are whales. Biologists also study animal behavior.
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