This Brookesia minima is the smallest species of chameleon. This one is just half an inch. Found on the rainforest floor of Nosy Be Island off the north-west coast of Madagascar, females tend to be larger than males.

At only 4.9in tall, Ducky weighs less than 1lb 6oz. His head is the size of a large strawberry. “He is such a funny little guy,” says his owner Lisa Messier, who bought him for £2,500 when he was 13 months old. “He doesn’t go out for walks, but if you want to go out, you can just put him in your bag.”

The world’s smallest known lizard, the Jaragua Sphaero or dwarf gecko, measures only 0.6in from the base of its tail to its snout. This endangered species lives in Jaragua National Park in the Dominican Republic and on Beata Island off the southern coast of Hispaniola.

This black-headed sagui dwarf monkey from Brazil measures 4in and weighs 5.6oz. They are found in a small area between two remote rivers. The breed was discovered only ten years ago when a local man found one on a boat and showed it to a scientist, who tested its DNA

Source: Dailymail.