Source: Kumar Appaiah/Flickr CC BY-SA 2.0 Humans are social animals. We are strongly influenced by those around us. We adapt to what we perceive as normal behavior in an environment – the social norm ...

“Onyx Bridge is a dramatic example of petrified wood” found in a layer of rock that dates back 210 million years, the National Park Service reports. National Park Service photo One of the world’s most ...

Petrified Forest National Park is one of the most surprising places in the American Southwest. It’s an otherworldly mix of colorful badlands, ancient petroglyphs, historic Route 66 nostalgia, and the ...