The Bengal Monitor, Varanus bengalensis, also known as the Common Indian Monitor, is a smaller lizard found throughout Bangladesh and India. Although they are usually found on the ground, the young are often seen in trees. They shelter in burrows or crevices in rocks and buildings. They will often make use of abandoned termite mounds.
The Bengal Monitor measures up to 30 inches in body length with the tail being an additional 40 inches long. Large adults may ascend vertical tree trunks and sometimes stalk and capture roosting bats for food. Their normal diet consists of beetles, grubs, scorpions, snails, ants and other invertebrates. They will sometimes eat frogs, fish, lizards, snakes and rodents.
Males will fight each other in a bipedal fashion for females. After mating the female lays up to 30 eggs in a hollow dug in the ground and the eggs hatch in about five months. The young often remain together in loose groups and often live on trees and live on an insectivorous diet. Monitor lizards are often killed for their meat and skins and are threatened in many places by hunting.