Aug 17, 2014

Mom, son find mammoth tusks 22 years apart

A man who was having little luck catching salmon decided to look for fossils over the weekend and found a wooly mammoth tusk in the same Alaska location where his mother found one 22 years ago. Andrew Harrelson found the 12-foot (nearly 4-meter) fossilized ...

Jul 20, 2014

Fruit colors evolved to please picky birds: study

Tropical Asian birds have a penchant for red and black — a proclivity that likely prompted jungle plants to sprout fruit in these colors, according to scientists. It has long been suspected that an abundance of red and black fleshy fruits in nature was ...

Jul 15, 2014

Friends share DNA similarities, study finds

You may be more similar to your friends than you think: A study suggests that the DNA code tends to be more alike between friends than between strangers. That’s beyond the effect of shared ethnicity, researchers say. And it could be important for theories ...

How ancient parasite wormed its way into human life

Jun 20, 2014

How ancient parasite wormed its way into human life

In a skeleton more than 6,200 years old, scientists have found the earliest known evidence of infection by a parasitic flatworm, revealing how human advancement enabled a creature resembling a tiny slug to spread. Today it afflicts more than 200 million people. Archaeologists discovered ...

Were dinosaurs cold-blooded killers? Perhaps not

Jun 13, 2014

Were dinosaurs cold-blooded killers? Perhaps not

The hot question of whether dinosaurs were warm-blooded like birds and mammals or cold blooded, like reptiles, fish and amphibians, finally has a good answer. Dinosaurs, for eons Earth’s dominant land animals until being wiped out by an asteroid 65 million years ago, were ...