Most people are familiar with the pretty tropical fish found in aquariums, but few realize that some of these animals are capable of changing sex. Discover the unique ways of how some fish species do this and why they likely evolved this way.
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.