7 of the Smallest Animals in the World in 2024

7 Madame Berthe's Mouse Lemur

This tiny lemur is the smallest primate in the world, measuring just 9.2 centimeters (3.6 inches) long and weighing just 30 grams (1.1 ounces). It is found in Madagascar, where it lives in forests and feeds on insects and fruits.

6 Etruscan Shrew

This tiny shrew is the smallest mammal in the world by weight, measuring just 3.5 centimeters (1.4 inches) long and weighing just 1.5 grams (0.05 ounces). It is found in Europe and North Africa, where it feeds on insects.

5 Bee Hummingbird

This tiny hummingbird is the smallest bird in the world, measuring just 5.5 centimeters (2.1 inches) long and weighing just 1.8 grams (0.06 ounces). It is found in Cuba, where it feeds on nectar from flowers.

4 Kitti's Hog-Nosed Bat

This tiny bat is the smallest mammal in the world by wingspan, measuring just 11.4 centimeters (4.5 inches) across. It is found in Southeast Asia, where it lives in caves and feeds on insects.

3 Slender Blind Snakes

These tiny snakes are the smallest snakes in the world, with some species measuring just 10.4 centimeters (4.1 inches) long. They are blind and have no legs, and they live in burrows underground in the Caribbean and South America.

2 Paedocypris Fish

This genus of freshwater fish is the smallest fish in the world, with some species measuring just 7.9 millimeters (0.31 inches) long. They are found in Southeast Asia, where they live in swamps and peat forests.

1 Paedophryne amauensis

This tiny frog, also known as the Papua New Guinea microhylid frog, is the smallest frog in the world, measuring just 7 millimeters (0.27 inches) long. Its so small that it can sit on the head of a pencil!