Sundarbans East Wildlife Sanctuary but their chief prey is the spotted deer ("Axis axis") and the wild boar ("Sus scrofa"). There are three species of wild cat, the leopard cat ("Prionailurus bengalensis"), the fishing cat ("Prionailurus viverrinus") and the jungle cat ("Felis chaus"). Also present are three species of otter, one of which, the smooth-coated otter ("Lutrogale perspicillata"), has been domesticated by local fishermen. The South Asian river dolphin ("Platanista gangetica") inhabits some of the larger water channels. Birds are plentiful with over 270 having been recorded in the area including 38 species of raptor, 95 species of waterfowl and 9 of kingfisher. On
Endangered species either: D) Population size estimated to number fewer than 250 mature individuals. E) Quantitative analysis showing the probability of extinction in the wild is at least 20% within 20 years or five generations, whichever is the longer (up to a maximum of 100 years). There is data from the United States that shows a correlation between human populations and threatened and endangered species. Using species data from the Database on the Economics and Management of Endangered Species (DEMES) database and the period that the Endangered Species Act (ESA) has been in existence, 1970 to 1997, a table was created that