Long before humans walked the Earth, huge prehistoric animals roamed the planet until evolution eventually led to the emergence of new species. Arthropleura, the largest arthropod of the ...

Well, a team of scientists unearthed ancient footprints that offer insight into how various prehistoric animals lived as far back as 50 million years. The National Park Service (NPS) called the ...

Fossilized footprints and tracks dating back 50 million years ago discovered at the John Day Fossil Beds National Monument could provide new insight into how prehistoric animals lived in Oregon.