ALT The results show that 21 to 36 percent of mammals are at risk of extinction, while 76 mammals species are known to have gone extinct since 1500 and another two species have disappeared in the wild. “Our results paint a bleak picture of the global status of mammals worldwide,” the authors write. “We estimate that one in four species is threatened with extinction and that the population of one in two is declining.”

ALT classification of DD amphibians, mammals, and reptiles is likely to further increase both the absolute and relative number of species threatened by extinction in these taxonomic groups. For instance, an additional 14% of amphibians were predicted to be threatened by our ML classifier. This would raise the relative number of amphibian species being threatened by extinction from 39% to 47%. Similarly, the fraction of threatened mammals and reptiles likely increases when accounting for DD species (from 26% to 31% and 19% to 25%, respectively; Supplementary Table 1).

ALT Mammal IUCN red list

ALT 40 Percent Of Insect Species Could Go Extinct In Coming Decades, Study Finds Jeremy Hobson Jack Mitchell February 12, 2019

ALT The global biodiversity crisis is even more serious than previously thought with half the creatures on the planet heading towards extinction, researchers from Queen’s University Belfast have found.