turtles go the distance

Turtles go the distance. Female loggerhead turtles in Florida, US, increasingly rely on long-distance relationships with males in North Carolina, according to research our of the University of Exeter in the UK.

That’s because the sex of the loggerhead hatchlings is determined by the temperature at which the egg is incubated: warmer temperatures yield females, cooler ones yield males.

So warming temperatures in the US mean that southern populations of loggerheads are increasingly dominated by females.

New Scientist, 31 Aug 2007