Calling all amateur paleontologists! Explore the badlands of Nebraska and hunt for fossils at this remote destination inside Oglala National Grassland.

The proteins in the rhino fossil are intact in the high Arctic's dry, cold environment, and the hardiness of tooth enamel.

Well, the the important part is what scientists found in the teeth:the oldest surviving proteins every discovered.

A fossilized rhino tooth reveals ancient proteins, pushing back the timeline of rhino evolution by millions of years.