The reason people go straight: It's too hot!

The Daily Mail of the UK led the latest study, saying that the reason people started to go straight was because the weather was very hot.

Scientists discovered that Turkana Basin of Kenya was named the cradle of human evolution, millions of years ago appeared a much hotter weather phenomenon than today, daytime temperature. all over 32 degrees C.

This finding reinforces the theory of 'hot hypothesis' about human evolution.

The theory of 'hot hypothesis' suggests that the cause of people starting to go straight is due to unbearable high temperatures.

Inferring to this argument, the reason our ancestors at that time started going straight was to avoid much contact with the surface of the earth.

At the same time go straight to help the body not be exposed much under direct radiation from the sun as when crawling with four limbs.

When living under high temperature, the amount of hair is low also has a certain heat dispersion effect.

Professor Steve Jones of the University of London, UK, said the finding adds to the credibility of the 'hot hypothesis' theory.

However, Professor Robin Compton of the University of Liverpool does not appreciate this argument and believes that the environment for prehistoric people to start going straight is the forest area, not the desert in Kenya./.