Lionfish pose a threat to native species as their numbers are skyrocketing out of control. The best way to solve the problem of invasive lionfish? A fork.
Located in the Gulf of Mexico, the Flower Garden Banks National Marine Sanctuary is home to a variety of sea critters and is a treat to dive.
Eggs are a dinnertime delicacy in reefs around the world, which means protecting nests is hard work. Ironically, the safest place to hide eggs may be in the mouth.
Reliable measurement of oxygen is the technology that makes mixed-gas closed-circuit rebreathers (CCRs) possible. The first digital solid-state CCR sensor was made available in Spring 2017, and has greater accuracy and reliability.
Aquariums can house your own slice of indoor reef life — complete with colorful fish, corals and spunky crabs. Follow these tips to create your perfect aquarium.
DAN member, diver and author Jim W. Bunch talks about discovering and exploring underwaters wrecks on the shores of North Carolina.
Grouper populations are on the rebound thanks to protection efforts. But a major threat to these fish remains: mercury.
School is in session! Shark experts pooled together in the nonprofit organization Sharks4Kids, teaching families around the world about sharks — setting the record straight.
In 2016, DAN conducted research into the effects of diving on heart rhythm. Learn more about the research, methods and some early results.
Late filmmaker Rob Stewart used his films to celebrate sharks and bring attention to their plight. His inspiration and passion for shark conservation live on.