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| Tuatara - NZ's dinosaur | |
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| Topic Started: Nov 5 2013, 11:31 PM (179 Views) | |
| Kahu | Nov 5 2013, 11:31 PM Post #1 |
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Posted Image Posted Image Posted Image Posted Image |
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| Dana | Nov 6 2013, 01:24 AM Post #2 |
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WWS Hummingbird Guru & Wildlife photographer extrordinaire
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About as large as a cat. It looks as if it would fit right in on the Galapagos Islands. We have nothing like that here, only a few sorts of salamanders and small lizards. Edited by Dana, Nov 6 2013, 01:25 AM.
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| Darcie | Nov 6 2013, 01:52 AM Post #3 |
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Skeptic
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I don't think I would like to see that basking on my front porch. |
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| Kahu | Nov 6 2013, 10:59 AM Post #4 |
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I've got a tame one out in the backyard ..... |
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| Olive Oil | Nov 6 2013, 12:09 PM Post #5 |
Gold Star Member
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There is something very cute about them. Do they ever attack dogs or cats? |
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| Kahu | Nov 6 2013, 12:38 PM Post #6 |
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No, they're no match for cats and dogs ..... they're too slow, although they can really move when they're too hot. These animals are affected severely by climate changes ... The tame one I have out in the backyard is made of concrete! However, contemporary rates of climate change threaten the survival of tuatara because their isolation on islands prevents southward migration that could counter the effects of increasing air temperatures on sex ratios, and the capacity of tuatara to adapt to increasing air temperatures via evolutionary mechanisms is further limited by their long generation time and low genetic diversity in the surviving populations. Climatically imposed biases toward males in tuatara populations will increase the chance of demographically driven extinctions, and are likely to be particularly deleterious in smaller populations due to the additional burden of stochastic and/or Allee effects (Nelson et al. 2002b). ...... Predicting the fate of a living fossil: how will global warming affect sex determination and hatching phenology in tuatara? Source Link Tuatara are the only living representatives of an ancient lineage – the order Sphenodontia, over 250 million years old. The other reptiles – crocodiles, turtles, snakes and lizards – have many species worldwide, but just two species of tuatara survive, and only in New Zealand. Tuatara - Source Link |
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5:55 AM Jul 14