As a scuba diver you get exposed to the different and fascinating world of marine biology. For many diver at some point it crossed their mind even to start a career as marine biologist. In any case marine biology is is fascinating for recreational scuba diver and to understand more into detail what life underwater is about! 

Just think about the origin of life 3.5 bln years back with cyanobacteria converting the atmosphere into our nowadays 21% Oxygen level. Or the fascinating world of animals like coral or sea stars how are able to live a life even without a brain at all. And particular the coral reefs are the home the around 25% of all marine life and the kindergarten to many pelagic hunter as well.