The rarely seen greater naked bat (Cheiromeles torquatus) is the world's largest insect-eating bat (weight 167-196 g, wingspan about 65 cm). This bat's name comes from the fact that it's body is mostly lacking fur. These bats are the jets of the bat world, with long, narrow wings and exceptionally fast flight. They roost in extra large caves and likely also use cliff face crevices and tree hollows high above the ground, from which they can drop to gain flight. Mothers normally produce twins, and they form nursery colonies of up to 20,000. They rely on low frequency echolocation that is audible to humans and hunt in open areas over rivers and fields or high above forests. Roosting