What is so special about the animal
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It's very interesting to know :
The tuatara may look like a lizard, but it's unique. The tuatara is not a lizard; it is the only living member of the order Rhynchocephalia, which flourished around 200 million years ago. All other members of the order became extinct 60 million years ago, in the late Cretaceous period.
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They have two rows of teeth in the upper jaw overlapping one row on the lower jaw, which is unique among living species. They are also unusual in having a pronounced photoreceptive eye, the third eye, which is thought to be involved in setting circadian and seasonal cycles.
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