The extremely well-camouflaged mata mata turtle dresses like a piece of bark with spiky ridged scales, and sucks in prey by creating a vacuum. And it appears to be always smiling.
With its disproportionately large head and elongated thick neck, the mata mata looks a bit odd, but always smiles nevertheless. Image credit: Per Se
One of the largest freshwater turtles (their shell can grow to nearly 45 centimeters or 1.5 feet, and weigh about 17 kilograms or 38 pounds), the mata mata is a rather strange-looking animal, at least by human standards. It has a disproportionately large head and elongated thick neck, riddled with warts and ridges known as ‘tubercles‘. On either side of its long snout sits a shiny disc resembling a holed penny. And, its wide mouth makes the animal look as if it always had smile on its face.
But while the mata mata might be ugly to some, their looks are actually an adaptation to their surroundings, bringing a number of benefits.
A unique-looking head structure. Image credit: Joachim S. Müller
Found in the Amazon and Orinoco basins in South America, these turtles are carnivorous and nocturnal, preferring to hunt for small fish and aquatic invertebrates at night. But, despite their big shells, they can also become prey to even bigger carnivores, such as crocodiles.
And that’s where those ridges, lumps and flaps of skin that cover their body come into the picture. Although they might make them look ‘aesthetically challenged’ for humans, those skin formations actually have a number of important functions, one of them being is that you resemble decaying wood and swampy putrefaction in general – stuff that’s both relatively common and inedible in the river basins where the mata mata lives.
