Monday, December 21, 2009

Colour evolution in fruit flies



Hi,

Ugandan fruit flies have changed colour, according to scientists. Researchers have reported in the journal Science that genetic mutations have caused the flies to evolve darker colouration, which they believe helps the creatures adapt to higher altitudes.

Global warming allows organisms that adapt to live at higher altitudes. Everyone knows that the temperature drops as one goes up the mountains. As global warming occurs, the temperatures at higher altitudes also warms up and organisms that used to live in the valleys can now colonise the slopes of the mountains.

Source: Science Journal

Cheers

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