7 Tiniest Mammals Found on Earth

Smallest Mammals on Earth Radiocity By Radiocity Team Published Jul 02, 2025 [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Bumblebee Bat Also known as Kitti`s hog-nosed bat, it’s about the size of a large bumblebee and weighs just 2 grams. The smallest mammal by skull size. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Etruscan Shrew This lightning-fast creature eats twice its body weight daily. It has one of the highest metabolic rates among mammals. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Pygmy Marmoset Native to the Amazon, it’s the smallest monkey in the world. It clings to tree trunks and weighs less than a smartphone. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Pygmy Mouse Lemur Found in Madagascar, this tiny primate fits in your palm. It’s nocturnal, shy, and has oversized eyes for night vision. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Least Weasel A fierce and agile predator, this weasel is incredibly small but can hunt animals larger than itself with deadly precision. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

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