Climate Change Means 'Virtually No Male Turtles' Born In A Key Nesting Ground : The Two-Way : NPR

So much for coming out of their shell - or in it. Climate Change Means 'Virtually No Male Turtles' Born In A Key Nesting Ground : The Two-Way : NPR: Like many reptiles, the sex of a turtle is determined by how warm the egg is as it's being incubated. And small temperature differences can cause dramatic changes in the male-to-female ratio.