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Crocs too hot to lay eggs

Crocodiles too hot to lay their eggs - pregnant crocs are in need of some relief in the Top End. Their reproductive processes were triggered by heavy downpours in early November but soaring temperatures and a lack of follow up rain has forced the expecting mums to delay nesting. "The rain dried up and the croc tends only to nest when there is a lot of rain, and they will wait until then. I am not sure what will happen, they are significantly late ... If they are carrying the eggs inside them waiting for a nice rainy day it could possibly effect their embryonic development. We don't want them to stay in there too long." 40 breeding pairs at the Darwin croc park normally started to lay their eggs in November. But this year there had only been one. "It's the same for crocodiles everywhere and we probably only see something like this happen every 10 years or so. What we're really worried about is that when the egg is finally laid ... (the embryo) might have attached to the wrong side of the egg and drown under the yolk." Other concerns are that there will be infertilities, early embryonic deaths, abnormalities and a reduction in the number of females who nest at all. "We are not sure what will happen. We are not sure whether nesting will be delayed and normal or whether the nesting will be delayed and there will be a change in the development of the embryos." Crocodiles normally carry their eggs for a few weeks before laying them in a vegetation mound to incubate for three months. The outcome of the STRANGE WEATHER PATTERNS would be known come hatching time in February. "By February we will be learning something either way."

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