They are largely arboreal, feeding on the leaves of the trees in which they live. They can be detected as the troop moves rather noisily through the branches overhead making fantastic leaps from tree to tree. The best place to see colobus is where the river comes close to the road at the north end of Kimarishi Hill. An adult black and white colobus measures around 80 cms from the head to the base of the tail while the tail itself is about another 100 cms long. Colobus live in family troops with an adult male and several females.
Young males leave and either form new troops or are solitary.
In the river itself are some exceptionally large Crocodiles . These great reptiles can be watched as they bask on the sandbanks of the river, but do not venture too near the waters' edge as crocodiles seize prey with surprising speed. Once caught in the vice-like jaws, the prey is drawn under water to subdue it and either torn apart immediately or stored until wanted. Special Thanks to Thomson Safaris and Tanzania National Parks for contributing Tanzanian information. All rights reserved.