And it was reported in December 2006 that archaeologist Edward Breck Parkman thinks, and has a growing body of evidence to prove, that mammoths once used the rocks along the Sonoma Coast State Beach in California, to scratch their backs. He attributes the behavior to Columbian mammoths and mastodons that lived 15,000 to 30,000 years ago. He points out large surfaces of rock that have been buffed smooth!
No comments:
Post a Comment
You may add your comments here.