Several threatened mammal species live here including Nilgiri tahr, Indian elephant, Bengal tiger, Nilgiri marten, Nilgiri langur and Bonhote's mouse. Mukurthi is near the northern end of the range of the Nilgiri tahr. A three-day census in March 2007 estimated 200 tahrs in the park including 60 young ones sighted. There are also leopard, bonnet macaque, sambar deer, barking deer, mouse deer, otter, jungle cat, small Indian civet, wild dog, jackal, black-naped hare, shrew, Malabar spiny dormouse and soft-furred rat.