Researchers with Monterey Bay Aquarium Research Institute (MBARI) found and extracted a mammoth tusk deep under the ocean. According to MBARI, their team spotted the tusk 185 miles offshore and 10,000 feet deep on top of a seamount in 2019. They returned on July 2021 to bring the tusk to the surface. "The researchers have confirmed that the tusk—about one meter (just over three feet) in length—is from a Columbian mammoth (Mammuthus columbi)," reported the institute. They believe it could be the oldest well-preserved mammoth tusk recovered from this area of North America. The Columbian mammoth went extinct around 11,500...