The tusk, which belonged to a female mammoth, is more than 100,000 years old. By Joanna Thompson, November 30, 2021 Researchers pinpoint the mammoth tusk on the ocean floor (Image credit: Monterey Bay Aquarium Research Institute (MBARI))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
Too-cute sea otters are ravenous predators that feast on purple urchins and other destructive species.BY MATT SIMONNOVEMBER 22, 2021Sea otters, once hunted by humans for their fur and now adored for their cuteness, may be key to saving entire ecosystems. DOUG MEEK/GETTY IMAGESOFF THE COAST OF CALIFORNIA lies an underwater forest of giant kelp, a kind of seaweed that grows to 100 feet tall at the rate of a foot a day. Just as a
In Ethiopia’s Danakil Depression, a continent is tearing itself apart, and volcanic chemicals fuel ecosystems unlike anything else on the planet.BY ROBIN GEORGE ANDREWS NOVEMBER 22, 2021Sulfurous springs in the Danakil Depression discharge brine and acidic liquid. ARTERRA/MARICA VAN DER MEER/UNIVERSAL IMAGES GROUP/GETTY IMAGESExcerpted from Super Volcanoes: What They Reveal About Earth and the Worlds Beyond. Copyright (c) 2021
The death of a sacred tree led to the discovery of other wonders. BY WINNIE LEE NOVEMBER 19, 2021"The thin dirt path before us is made from bare feet and zebu hooves. After much discussion, the men have decided to take a different route, which leads to the discovery of new trees." ALL PHOTOS: BETH MOONWhen Tsitakakoike, one of the largest Grandidier’s baobab trees in Madagascar, with a circumference of almost 90 feet, split
