Bee Hummingbird

The bee hummingbird is the world’s most itty-bitty bird. It weighs less than a dime and only grows to be about two inches long (the same length as two quarters side by side). The bee hummingbird beats its wings up to 80 times per second!

Nano-Chameleon

Scientists recently discovered the world’s smallest known reptile. This cute chameleon is about the size of a sunflower seed—teensy enough to sit on a person’s fingertip.

Pygmy Marmoset

The world’s smallest monkey, the pygmy marmoset, lives in the rainforests of South America. This little critter is so tiny (about 4.5–6 inches long), it could wrap around a human finger!

Dwarf Lantern Shark

The smallest species of shark, the dwarf lantern shark, is only about 8 inches long—that’s about the length of a banana. This tiny shark has special organs that make it glow in the dark.

Pink Fairy Armadillo

The pink fairy armadillo is the smallest armadillo in the world. It’s only about 4 inches long—that’s shorter than a popsicle stick. It lives in the deserts and grasslands of Argentina, South America, and is nocturnal, meaning it’s active at night and sleeps during the day.