Add Yahoo as a preferred source to see more of our stories on Google. Every year as winter turns into spring, I'm awed by all the changes in the natural world: the grass becoming greener, the trees ...

Explore 100 mind blowing evolution facts that make Earth feel totally alien. Discover bizarre life forms, genetic quirks, and ...

Earth is our home planet, and it's the only place in the universe where we know for certain that life exists. Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished ...

Use left and right arrow keys to seek audio. For the entire duration of human existence, we have been trying to make sense of the planet we have been living on, called Earth. Humans have come quite ...