About 50 varieties of forest mammals are found to occur in the Andaman and Nicobar Islands. Some are endemic, including the Andaman wild boar. Rodents are the largest group with 26 species, followed by 14 species of bat. Among the larger mammals there are two endemic[citation needed] varieties of wild boar, Sus scrofa andamanensis from Andaman and Sus scrofa nicobaricus from Nicobar, which are protected by the Wildlife Protection Act 1972 (Sch I). The Saltwater crocodile is also found in abundance. The State Animal of Andaman is the dugong, also known as the sea cow, which can be found in Little Andaman. Around 1962 there was an attempt to introduce the leopard, which was unsuccessful because of unsuitable habitat.