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.
Iberian lynx fossils dating to 1.6 million years ago were recently recovered from a cave in Barcelona, Spain. It's the oldest lynx specimen ever found, suggesting the species arrived in the area 500,000 years earlier than originally estimated.
Foot and hand bones of Homo naledi, an extinct human ancestor, suggest that the early humans walked up right on two feet and climbed trees.
Hominin fossils examined from South Africa suggest early humans and chimpanzees had similar hearing patterns, with some slight differences in the direction of humans. This is a preferable auditory system for people living in the savanna and communicating within a short range.
A new lizard species with teeth fused to the top of its jaws has been found in fossilized remains in southern Brazil. It seems that a different path of evolution was taken by these reptiles than previously thought.
As it turns out, not every primate will accept a perpetual game of "follow the leader." A new study has found that baboons will often make their decisions democratically, valuing other aspects of their social hierarchy beyond simply obeying the alpha male.
It has long been suggested that our impact on the planet is so substantial that it grants its own new geological epoch - known as the Anthropocene. While the beginning of this new era has been heatedly debated, one group of scientists believes it has finally pinpointed the exact date of when humans began to dominate the Earth.