See the unusual layer of “blue clay” at the bottom of the bay,
U.S. News & Records
Diamond clues to beasts' disappearance?
Nano-diamonds coincide with the onset of cooling 12,900 years ago and may have wiped out woolly mammoths and the Clovis culture in North America.
Carolina Bays in Alaska!
23 Oct 10 – Reader Robert Bixler found these oval depressions in the ground just south of the city of Barrow, Alaska, and realized that they look very similar to the Carolina Bays.