'Puppy dog eyes' developed to manipulate humans
A new scientific study found that dogs have evolved to raise their eyebrows to ensnare human empathy. This could be either to emulate babies or to show people the whites of their eyes.
How old is humankind?
How old is humankind? Humans' closest relatives are the great apes-but human and chimp lineages diverged roughly five million years ago.
2016 human dev. ranking - Nigeria remains static at 152 out of 188 countries
2016 human development ranking - Nigeria remains static at 152 out of 188 countries.
Students compete in NASA's international 'Rover' challenge
School and university teams from the U.S. and numerous other countries compete in NASA's 2017 Human Exploration Rover Challenge, peddling human-powered rover vehicles which they designed and built themselves for navigating the surface of other planets.