And as temperature increase across Arctic and sub-Arctic regions, it may affect modern-day descendants of these ancient people.

NPR: History Emerging from the Ice

Four sub-sliders can be adjusted within Awesomize editing, including Sharpness, Temperature, Vibrance and Contrast.

WSJ: The Digital Solution: A Photo App That Makes 'Awesome' a Verb

Dr Michel Alary, an Aids specialist in the department of medicine at Laval University and the Saint-Sacrement Hospital Research Centre, said that the extremely high temperatures in sub-Saharan African countries could prevent the gel working there if it requires room temperature to be effective.

BBC: Condoms