Craseonycteris is a genus of bats known for its small size, often referred to as the world's smallest mammal. These bats are native to Southeast Asia, particularly found in regions like Thailand and Myanmar. They typically inhabit tropical forests and are known for their unique feeding habits, primarily consuming insects. The most recognized species within this genus is the Kitti's hog-nosed bat, which measures about 3 centimeters in length. Craseonycteris plays a crucial role in its ecosystem by helping control insect populations. Their small size and specialized habitat make them vulnerable to environmental changes and habitat loss.