There are four species of giant squirrels in South and South-East Asia of which three are found in India. These forest canopy dwellers rarely come down to the forest floor. They build multiple globe-shaped nests and use them for sleeping and as nurseries. They make shrill sounds and their high –pitched alarm calls rival those of monkeys.
The Malayan giant squirrel measures between 35 and 80 cm long and can be identified by its deep brown or black back and buff underparts.It has large black ears with hairy tufts, a black tail and black marks on its chin.