Inca trail
Unesco's Scientific, Educational and Cultural Organization has recognized Bolivia's Inca Trail together with Argentina, Chile, Colombia, Ecuador and Peru as World Cultural HeritageVideo: Giant carnivorous alligator in America
The big crocodile gripped the smaller crocodile, crawling on the American trail to find a place to eat.Explain why the brain uses so much energy?
By modeling brain activity at rest, neuroscientist James Kozloski at IBM claims to explain why the brain uses so much energy in the body.