The Nile crocodile is found far further south than the Nile River, being endemic to much of sub-Saharan Africa, including the Kruger National Park, where the southern border is marked by the Crocodile River.
These large specimens are probably somewhere between 4 and 5 metres long and weigh over 400 kg. They are opportunistic predators. They will eat fish, other reptiles, birds and mammals, including humans. Their bite is unique because the grip is impossible to loosen as well as exerting great force. They drag their prey down into the river where it drowns.
As one can see from the photograph, Nile crocodiles are social, sharing basking spots and food sources. They lay eggs which are guarded by females and once hatched they are protected, although not fed.
They are not endangered.