The New Mexico findings could rewrite the history of human migration to the Americas.
There are no body fossils of elephants from this time period, so the available information of how these gigantic animals moved through the ancient landscapes depends entirely on the track record.
Australotitan was a massive long-necked sauropod estimated to weigh the equivalent of 1,400 red kangaroos.
So how accurate is the T. rex’s running speed in that famous Jurassic Park jeep-chase scene?
These surfaces are of profound scientific, cultural, heritage, environmental, and aesthetic importance. Unfortunately, they are threatened - by graffiti.
One avian track, probably made by a large gull or a small goose, was found in sediments that have been dated to about 400,000 years. That makes it the oldest avian track reported from southern Africa.