joshdykgraaf

joshdykgraaf OP t1_iuyv5ai wrote

Huh. TIL that's what they are actually called. I'm familiar with the concept obviously, as these type of creatures are in mythology all over the world - no idea the general concept had its own name (of course it does I guess).

I like that word a lot.

Also, thank you!

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joshdykgraaf OP t1_iuy8o49 wrote

This image is a manipulation of satellite photos of the Great Barrier Reef off the Australian coast and Islands along it, shaped into the form of a Green Sea Turtle. The satellite images are sourced from Digital Earth Australia.

Of the animals being impacted by climate change, Green Sea Turtles have probably the most unusual extinction path I've read about so far. The gender of animals such as turtles and crocodiles is determined by the temperature experienced during egg development. Green Turtles develop into females if the temperature of the nest is more than 29°C (sand temperatures above 34°C are fatal).

As ambient and ocean temperatures rise due to climate change, recent surveys have found that turtles hatching from beaches in the southern Great Barrier Reef are 65-69% female, but those hatching from northern beaches are 99% female.

The researchers concluded that the northern rookeries have been producing primarily females for more than two decades, and that complete ‘feminisation’ of the population may occur in the very near future, with disastrous consequences.

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