Coral samples taken from deep ocean seamounts sit in a lab aboard a University of Hawaii research vessel during an expedition to unexplored underwater volcanoes off the coast of Hawaii's Big Island on Sept. 7, 2016. A group of undersea volcanoes in the area known as the Geologist Seamounts are about 80 million years old and could hold many new animal species, as well as elements such as nickel and cobalt that mining companies could extract. (AP Photo/Caleb Jones)