Wild horses running free at the Black Hills Wild Horse Sanctuary in South Dakota. (Credit: Black Hills Wild Horse Sanctuary) ...

Ancient migration between wild horse populations in America and Asia show how ecosystems adapt to survive cataclysmic change ...

Imagine the earth slowly thawing, revealing secrets locked away for tens of thousands of years. In the wild, frozen stretches ...

The origin of reptiles on Earth has been shown to be up to 40 million years earlier than previously thought -- thanks to evidence discovered at an Australian fossil site that represents a critical ...

Paul Wilcox, a geologist at the University of Innsbruck, has discovered the first land-based evidence of meltwater pulses ...

At a site known as Natural Trap Cave, a team of scientists are rappelling down to uncover the secrets of what the Earth was ...