Endangered Species: An Overview

Sexton, Jennifer; Warhol, Tom
December 2017
Points of View: Endangered Species;12/31/2017, p1
A species is described as endangered when the entire population faces a serious risk of extinction. In the early twenty-first century, as human population growth, large-scale agriculture, and increasing economic development impact the planet in ways never before seen, extinctions are occurring at an unprecedented rate. The World Conservation Union has estimated that as many as 40 percent of all organisms are under some degree of threat due to habitat destruction, disease, pollution, overhunting and overfishing, or other reasons.


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