26 Jul 2016

The Third Eye

Tuatara means 'peaks on the back',  It's ancestors are 200 million years old. They can grow up to 80cm in length. They have a pronounced photoreceptive eye - the so-called third eye.
It is unique in having two sets of upper teeth which overlap one set of lower teeth.  They are able to hear but have no external ear.  They typically live 60 years but can be well over 100. 

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