This pipsqueak is the smallest shrew. Etruscan shrews are the world's smallest mammals. It weighs.14 ounces and is 1.57 inches long.For a little animal, it eats double its own weight every day.

Etruscan Shrew

The bumblebee bat is the smallest bat and mammal with the smallest skull. At.07 ounces and 1.14 inches long, you may mistake it for a bumblebee if it buzzed by your ear in the night.

Bumblebee Bat

These beautiful primates measure up to 11 inches long, including their tails. The Madame Berthe's mouse lemur measures 3.5 to 4.3 inches and weighs only an ounce.

Mouse Lemur

This finicky, wise little weasel is the smallest species of the Carnivora order, making it the tiniest true carnivore in the world. North American least weasel males only reach seven inches, and the females grow to 5 inches. It weighs less than 1.5 ounces.

Least Weasel

These beautiful, curious critters endemic to the Amazon rainforest are the world's smallest monkeys. Pygmy marmosets rarely grow longer than 5.12 inches and weigh 4.37 ounces.

Pygmy Marmoset

The Philippine Tarsiern is one of Earth's smallest primates, weighing 85 to 160 millimetres as adults. This local favourite is only in the Phillipines.

Philippine tarsier

The Hippocampus, often known as the Denise's pygmy seahorse or the yellow pygmy seahorse, With a maximum length of only about 2.4 cm, Denise is one of the tiniest seahorses ever found.

Hippocampus Denise

This little frog is one of the most unnoticeable vertebrates in the world. This tiny frog, Paedophryne amauensis, measures in at only 7.7 millimetres in total length.

Paedophryne Amauensis Frog

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