A researcher claims to have found evidence of humans in Chesapeake Bay over 22,000 years ago. The assertion is yet another recent announcement claiming to push the arrival of humans in North ...
These human ancestors lived during the Ice Age over 20,000 years ago. What do we know about them? The 'Solutreans' were an ancient people who lived in what is today Spain, Portugal and southern ...
DNA from prehistoric and modern-day people suggests that humans interbred with Neanderthals 47,000 years ago for a period lasting 6,800 years. Neanderthal genes seen in modern humans may have ...
It's also when Earth was in the midst of the ice age that ended only around 12,000 years ago. Ice ages are brought about by a range of factors, including our planet's tilt and rotation, carbon ...
During the past billion years, the Earth's climate has fluctuated between warm periods - sometimes even completely ice-free - and cold periods, when glaciers scoured the continents. The cold ...
Earth may have been exposed to interstellar clouds which may have changed the chemistry of the planet's atmosphere and led to the development of multiple ice ages, researchers suggest ...
An encounter with a cold cloud of gas and dust could have caused our planet's "protective giant bubble" to draw back. Scientists believe Earth may have briefly lost protection from the sun around ...