Hundreds of well-preserved prehistoric animals found in an ancient ash bed in Nebraska
Scientists have excavated fossils of 58 rhinos, 17 horses, 6 camels, 5 deers, 2 dogs, a rodent, a saber-toothed deer and dozens of birds and turtles in Nebraska.
A recent study has found that planet Earth’s magnetic poles underwent a flip some 40,000 years ago, in an event that was followed by global environmental change and mass extinctions…