But there’s a small and rare group of mammals that do things differently– they lay eggs! These special creatures are called monotremes, and they are some of the most unique animals in the world.

Here is a look at some of the most unique animal species that live in the rich vegetation of the rainforest. Location: Amazon ...

The Mammals Dark team travelled to Argentina to film one of the least mammal-like mammals in the world – the ‘large hairy armadillo’. Image by Tom Parry. Camera operator Max Smith sets up a ...

Evolving in isolation from the rest of the world, the plants and animals found here are among the most unique on earth, with 90% of species appearing nowhere else. For locals and tourists alike ...

Even as the oceans have changed over time, this ancient species has survived, proving its ability to endure. The platypus is one of the most unique mammals alive today. Native to Australia ...