The name of the smallest mammal in the world is the bumblebee bat, also known as Kitti's hog-nosed bat (Craseonycteris thonglongyai). This tiny creature weighs approximately 2 grams and has a wingspan of about 5.7 inches. Native to parts of Thailand and Myanmar, the bumblebee bat inhabits limestone caves and feeds primarily on small insects. Its diminutive size and unique features, like its pig-like snout, make it a fascinating mammal. Unfortunately, habitat destruction and environmental changes threaten its population, leading to conservation efforts to protect this remarkable species.