Exquisitely-preserved mammoth tusk found 10,000 feet underwater – Livescience.com

Researchers have discovered a Columbian mammoth’s (Mammuthus columbi) tusk 185 miles (300 kilometers) off the coast of California. Scientists estimate that the tusk, which was found at a depth of about 10,000 feet (3,070 meters), is well over 100,000 years…

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