However, all of this should serve as a reminder that very few things remain unchanged for long on planet Earth. A mere 90 million years ago, Antarctica was a radically different place. Instead of ...

Although the Earth’s been decidedly blue for 600 million years, rising populations of phytoplankton caused by rising ...

A new study published by an international team of researchers led by Taro Matsuo, an astrophysicist at Nagoya University in Japan, argues that this evolutionary trend made sense 3 billion years when ...

As Earth approaches warmer levels experienced earlier in its geologic history, it may be bad news for human survival.

A few fossilized body parts hinted at an enigmatic bird's close ties to waterfowl like ducks and geese. A newfound skull may bolster that idea.

Could our solar system have been temporarily exposed to an enhanced flux of cosmic-rays at some point in the ancient past?