Manas River tiger, elephant, gaur ("Bos gaurus"), four rare species of golden langur ("Trachypithecus geei"), pygmy hog ("Sus salvanius"), hispid hare ("Caprolagus hispidus"), greater one-horned rhinoceros ("Rhinoceros unicornis") and wild Asiatic water buffalo ("Bubalus arnee"). There are 362 species of birds, out of which four species of hornbills (rufous-necked, wreathed, pied and great Indian) have been recorded. Apart from the Ganges river dolphin ("Platanista gangetica") other aquan species identified in the river are the deep bodied mahseer ("Tor tor"), golden mahseer ("Tor putitora"), and chocolate mahseer or katle ("Acrossocheilus hexangonolepis"). Five thousand people live within the park limits in several villages. Tigers,
Endangered Species Act of 1969 degrees of protection to more than 30,000 species of animals and plants, whether they are traded as live specimens, fur coats or dried herbs." Finally, the 1969 Act authorized up to $15 million to be appropriated to acquire land for the purpose of conserving, protecting, restoring, or propagating any endangered species. The Endangered Species Act of 1969 was only in effect for four years. It was soon replaced by the Endangered Species Act of 1973. The 1973 act was signed into law by President Richard Nixon, and expanded the protections afforded by the Endangered Species Act of 1969. The act