Species in trouble Many mammals, corals face extinction
Between a fifth and a third of the world’s mammal species are now dwindling toward extinction, says the international conservation organization IUCN in the first comprehensive review since 1996 (SN: 11/8/08, p. 15). That’s at least 1,139 species in trouble. The extensive review of the 5,487 known mammal species took five years, yet 836 mammal species still remain so poorly studied that their status couldn’t be evaluated.