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Tuatara

Single-Sex Future Looms for Rare Ancient Reptiles

A world without females may not be worth living in. In fact, extinction would be imminent.That's the lonely and dire prospect faced by the tuatara.With rising temperatures, this endangered reptile could produce all-male offspring by 2085, guaranteeing its extinction, a new study finds.The spiny reptiles, about 30 inches (80 cm) long, are confined to small islands off the coast of New Zealand.Two tuatara species ( Sphenodon punctatus and Sphenodon guntheri ) are the only surviving members of the Sphenodontian family, which roamed the Earth about 200 million years ago along with the dinosaurs .• Click here to visit FOXNews.com's Natural Science Center.Nest temperature determines the sex of offspring for many reptiles.However, while a boost in temperature generally results in a nest full of more females than males, the opposite is true for tuatara whose offspring skew toward male in warmer climes.Nicola Mitchell of the University of Western Australia and colleagues used data from tuatara ...

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  12. Tuataras Breeding Again on Mainland New Zealand

    Tuataras Breeding Again on Mainland New ZealandFriday, October 31, 2008Print AP/Karori SanctuaryAn adult tuatara basking on a tree stump at the Karori Sanctuary near...

  1. Tuataras Breeding Again on Mainland New Zealand

    A rare reptile with lineage dating back to the dinosaur age has been found nesting on the New Zealand mainland for the first time in about 200 years, officials said ...

  2. SSC Tuatara's 1,350-hp ouput confirmed on the dyno

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  6. Strange Reptile Chews Food With Steak Knife-Teeth

    A strange reptile from New Zealand called the tuatara has some strange table manners. It uses its three rows of teeth in a unique way to chew its food much more than...

  7. 111-Year-Old Reptile to Be Father for First Time in Decades

    An indigenous New Zealand reptile regarded as one of the last remnants of the age of dinosaurs will become a father for the first time in decades at the age of 111, ...

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