In 1997, scientists got a surprise . something was bubbling at the bottom of the ocean. they had found deep sea vents, home to amazing and unusual animals . Jonathan Eisen, one of the scientists investigating the vents, emphasized the discovery's importance. "it told us that life can thrive . Not just grow a little bit,but actually thrive-event in the absence of light . the vents are home to a huge number of creatures. on average, scientists have discovered a new species "mind-boggling." "We are on the tip of the iceberg " he says.