Diving deep into the ocean is likely the most extreme place someone can set out to collect data, but sometimes that is what scientists need to do. In this show, Dr. Biology finds himself on board the research ship Atlantis in the floating laboratory of Colleen Hansel who is teaming up with the deep-sea submarine called Alvin to track down and capture an elusive molecule that might help us understand how corals are or are not adjusting to the rising ocean temperature. Photo credit: Scott Wankel