How do we know we're tired?
Do men feel more emotional pain than women? Study results may surprise you
Experts name new species of human ancestor
Parasitic wasps turn other insects into 'zombies,' saving millions of humans along the way
When and why did human brains decrease in size 3,000 years ago?
Oldest footprints of pre-humans identified in Crete
Primates' ancestors may have left trees to survive asteroid
What makes us human? The answer may be found in overlooked DNA
How valuable were dogs to ancient humans?
Earliest evidence of human activity found in the Americas
Meet the fish guarding genetic secrets that can unravel humanity’s evolution
How people manipulate their own memories
New research suggests humans can live to be 150 years old but there is a catch
Parenting 101 -- Attentive listening helps teens open up, study finds
Puppies are wired to communicate with people, study shows
Nature draws out a happy place for children
Turns out developing a taste for carbs wasn't a bad thing