What does a wildlife biologist call a beaver? Castor canadensis.
What does a botanist call a red pine? Pinus resinosa.
Scientists use two names for every known animal, plant, fungus, protozoan, and bacterium. These scientific names most often come from Latin. The first name tells you which genus a creature belongs to. The second name identifies its species. In the 1700s, a Swedish botanist named Carl Linnaeus set up this universal naming system. Scientists around the world now use it to describe living things, including you (Homo sapiens).
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