Roar Simply Territories
They roar simply to keep intruders out of their territories.
Howlers are vegetarians, but most other monkeys will eat anything they can find A saddle-backed tamarin searches for insects.
And a tufted capuchin gnaws on a shoot while watching for something bigger. The pigmy marmaset, the world smallest monkey is only five inches long, and to it
a grasshopper is a feast. The tiny monkey supplements its diet of leaves, plant gums and fruit with any insects it is able to catch.
