The Oldest Living Animal Species In The World

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2. Olm Salamander

This little creature is like something straight out of a fantasy book! The Olm salamander looks like a tiny dragon and spends its entire life underwater. Unlike most amphibians, it never leaves the water and prefers the dark caves of Slovenia, Croatia, and Bosnia and Herzegovina. Even more incredible? It can go years without eating and live for up to 100 years! Now that’s a survival expert.