A once-predictable system shifts out of balance
'Ear stones' provide clues to help restore river herring
Satellite tags reveal hidden world of ocean's largest fish
'One-pot' approach could speed syntheses of new products
Drones give researchers an unparalleled view of marine mammal health
These scientists, working on coral reefs, fish ecology, or seafloor topography, require uninterrupted lengths of time or close work in small areas, which are impossible to do by free diving or snorkeling. Scuba allows them time to observe and the experience of being in the environment yields insights beyond experimental results.