Bumblebee bats – aka Kitti’s hog-nosed bats, named after discoverer Kitti Thonglongya – are among the rarest bats in the world, and certifiably the smallest mammals, according to Guinness World Records.
They cluster around a few caves in Thailand and Myanmar, most notably those along the Khwae Noi River.
Here are five facts about the world's smallest mammal.
