Suppose you had the ability to wind back the clock to just before life appeared on earth and let it all happen again. Would life evolve in the same way twice?
If you needed to know what the weather was like in Singapore tens of millions of years ago, you'd have to consult a different source.
Scientists are using bone histology to sort things out. They've already concluded that Stygimoloch, was a juvenile Pachycephalosaurus, not a new species.
At six feet in length, this two legged plant eater was about the size of a large dog with a strange domed head.
Researchers found that if they bombard fossils with a special type of intense x-ray, they can find the pigment's location.
Was the dinosaur "Sue" really supposed to be named "Bob?"
At over a foot and a half in height and twenty-six pounds, the super rabbit was a big bunny!
Scientists suspected that two populations, African savannah and African forest elephants, were separate species because of their size differences.
How did some animals manage to survive the extinction?
Recent studies on dinosaur joints suggest that they may have been even taller than we thought!