Mata Mata Turtle

The mata mata is another turtle to make it on this list because of its peculiar appearance. It is a freshwater inhabitant endemic to South America and mostly found in the Orinoco and Amazon basins. The sedentary turtle features a large triangular-shaped flattened head that has tubercles. 

It also has a tubular snout with a horn on it and spikes that protect it from predators. The turtle’s appearance also helps it camouflage and blend in with its environment. Its shell resembles the bark of a tree, and its head looks like fallen leaves. With its motionlessness, it can easily prey on fish that come nearby.