Neanderthals and modern humans interbred 140,000 years ago

The fossil remains of a child, dated to 140,000 years ago, shows the earliest known evidence of breeding between Neanderthals and modern humans.

Human evolution complexity revealed in new African fossils

Scientists are learning more about human evolution after discovering a new species of Australopithecus that lived contemporaneously with ancient humans.

Did alcohol and evolution go hand in hand for humanity?

Alcohol and evolution: Eating alcohol-laden fruit might have helped early hominids socialize. Later, did making alcohol drive the rise of agriculture?

Why do we sleep? Study blames overloaded brain cells

Why do we sleep? University of Oxford researchers may have cracked the mystery: an electrical buildup within cellular components.

August birthstone: Peridot, spinel, or sardonyx

The August birthstone can be crystalline green peridot, colorful spinel, or banded sardonyx. Take your pick of these colorful gemstones, August babies!

UFOs in Canada? Official new report

The Chief Science Advisor of Canada has released a new report about UFOs in Canada. It provides guidelines to standardize UAP reports for government agencies.

Are dogs a good judge of character? New study says maybe not

Many people think their dogs are good judges of a person’s character, but new research indicates there is no evidence that dogs form opinions of people.

The 1st footsteps on the moon: Celebrate with Moon Day

Today is the 56th anniversary of humanity's historic Apollo moon landing and the 1st human footsteps on the moon. And it's also International Moon Day.

What are hole-punch clouds, aka fallstreak holes?

Have you ever seen a fallstreak hole or hole-punch clouds? They're a type of cloud with a flat layer interrupted by a big hole, often with wisps at the center.

Human dam-building has caused a small (but astonishing) pole shift

Human dam-building - nearly 7,000 dams from 1835 to 2011 - has shifted Earth's poles and caused a drop in global sea levels.