Loss of prey played a big part in the extinction of ancient cats. The same problem is threatening lions and leopards today.
It is not just how many, but what kind of animals are in Ötzi the Iceman's wild wardrobe.
New study revealed that clovis people might have passed through the ice-free corridor to reach America.
Scientists have discovered that the Earth's last living woolly mammoths went extinct on St. Paul Island in Alaska due to scarce fresh water sources caused by drastic environmental changes.
A new study revealed that human colonization followed by a rapid warming climate caused the collapse of the populations of Ice Age giants.
The Mars Reconnaissance Orbiter takes photographs of the surface of Mars, and the recent study comparing old and new photos suggest that there is indeed climate change on Mars.
A frozen mammoth carcass excavated from the Siberian Arctic had several spear-related injuries, which suggests humans arrived in the area 10,000 years earlier than previously thought.
Earth's largest apes died off because they could not adapt to a new diet forced by climate change 100,000 years ago.
A global cooling event during the Jurassic Period was triggered by a volcanic event that altered the flow of warm waters from the equator to the North Pole Region. This caused very cold temperatures in the northern hemisphere for many millions of years.
The ancestry of modern Europeans' genetic make up has become somewhat clearer with the discovery of a previously unknown "fourth strand" of ancient hunter-gatherer ancestry.
A newly published study that looked at large-mammal Ice Age fossils found in Alaska over 20 years has conclusions about how we can help current-day Arctic large mammals.
University of Florida researchers who recently published a study on 100 fossil species from one Bahamas island, say that most species that no longer exist there failed after the arrival of humans but survived long periods of climate change first.
The climate events depicted in the movie "The Day After Tomorrow," may be possible, researchers say.
Stone tools and several layers of civilization were recently turned up by foraging pigs' persistent snouts on the island of Islay in Scotland. The findings show that our previous ideas of the earliest settlements there were quite mistaken.