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Endangered
Means There Is Still Time
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Extinction
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Can you guess how many species have become extinct in North America since the Pilgrims landed in 1620? Scientists estimate that the natural extinction rate is approximately 1 species lost in every 100 years. Yet, more than 500 species in North America have disappeared in less than 400 years.
Extinction is a natural process, but the current extinction rate is not. Why
are more species going extinct today?
Today scientists are working with many partners, including students and teachers, to prevent species from becoming extinct. |