Dawn Bat 

Eonycteris Spelaea

Dawn Bats, also known as Cave Nectar Bats, inhabit caves of lowland forests all over Southeast Asia, especially in areas where Durian is present. The reason for this is due to the Durian's dependence on dawn bats for pollination. These bats have nectarivorous tongues with brush-like components that allow them in acquiring the nectar from deep flowers. They also have long necks that they use to thrust deep into the durian flowers. The relationship between the bat and durians is one of mutualism, as both organisms benefit from each other. Dawn bats are the main pollinators for Durians, which cannot bear fruit without it. Avocados, bananas, and kapok are fruits that also rely on the pollination of dawn bats.

Dawn bats are megachiroptera meaning they eat only fruit and nectar, and don't echolocate (use sensory system of high-pitched sounds to determine the direction and distance of an object). They are nocturnal creatures, leaving the cave only at night in search of food. The male is larger than the female and differs in its physical features. Male bats reach sexual maturity in two years, females only half that time. The females are capable of having babies at any time of the year, but the period of gestation can be as long as 200 days.