We may owe our very existence to an ancient poop explosion. If the earliest animals hadn't been such prolific poopers, life might not have diversified into all the weird and wonderful forms we see ...

The creation of life is a beautiful, sacred act; a great power no one should wield irresponsibly. That said, according to new research published in Trends in Ecology & Evolution, complex life on Earth ...

Some 540 million years ago, life on Earth suddenly got interesting. For 20 million years or so, evolution went into overdrive. Called the Cambrian explosion, scientists have no idea why it happened.