During the winter full moons Nassau grouper gather in large numbers to spawn. Most of the known spawning sites have been fished out, but the Cayman Islands are home to the last great reproductive population of this endangered species.
Last year's catastrophic oil spill in the Gulf of Mexico may no longer make headline news, but the story is far from over. Oceanographers continue to study the long term effects this disaster might have on marine ecosystems.
Tiger sharks are the ultimate apex predators. Scientists use satellite tags and DNA forensic tools to better understand the migrations of this magnificent species and to investigate the impacts of the world shark fin trade.