NPR reports on  A group of researchers  who found and photographed a woolly mammoth tusk on the banks of the Koyukuk River in Alaska. A sighting reveals extinction and climate change in a single image Read article and see photos at A tusk from a woolly mammoth is seen on the banks of the Koyukuk River in […]

A tusk from a woolly mammoth is seen on the banks of the Koyukuk River in Alaska — Natural History Wanderings