The selous wildlife or animals prodigiously large mammal populations found here, support the claim that the Selous is the greatest surviving African wilderness. Buffalo numbers are estimated at 120,000–150,000, and the reserve’s 40,000 hippo and 4,000 lion are probably the largest such populations on the continent. The Selous also harbors an estimated 100,000 wildebeest, 35,000 zebra, 25,000 impala and significant herds of giraffe, greater kudu, water-buck, bushbuck, Lichtenstein’s hartebeest and eland.
It is also one of the most important sanctuaries in Africa for the endangered wild animals like African wild dog, sable and puku antelope. There are also huge populations of crocodile, hippo, spotted hyena and leopard to name just a few of the big game species found here. Historically Selous has been home to a large proportion of Tanzania’s elephants population, but unfortunately there has been a marked increase in poaching over recent years and elephant numbers are now much lower than they once were.