Member to Member: A Reef in the Living Room

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.

A big saltwater fish tank stands proudly in a living room.

A Free-Flowing Failure

Contrary to what you might expect, air will escape from a low-pressure hose faster than from a high-pressure hose because of the low-pressure hose’s wider opening.

Contrary to what you might expect, air will escape from a low-pressure hose (left) faster than from a high-pressure hose (right) because of the low-pressure hose’s wider opening.

DAN Member Profile: Jim W. Bunch

DAN member, diver and author Jim W. Bunch talks about discovering and exploring underwaters wrecks on the shores of North Carolina.

In a black-and-white image, Jim Bunch inspects a shipwreck

High on Mercury

Grouper populations are on the rebound thanks to protection efforts. But a major threat to these fish remains: mercury.

A school of angry-looking grouper

Due Diligence for Parents of Young Divers

Parents often express reservations or concerns about going on dive vacations with their kids. But it’s a joint reasonability from both parents and dive operators.

A group of children sit on a walkway, with their hands raise, taking a scuba diving class

School of Sharks

School is in session! Shark experts pooled together in the nonprofit organization Sharks4Kids, teaching families around the world about sharks — setting the record straight.

Researchers and students on a boat, tag a shark

Pneumonia in Germany

No one likes getting sick on vacation, but one individual had a hard experience trying to file a claim with their primary insurance provider. One call to DAN, and it was smoothed over.

A stock image of a doctor checking the chest x-ray of a patient

The Keys to Our Hearts

In 2016, DAN conducted research into the effects of diving on heart rhythm. Learn more about the research, methods and some early results.

A DAN researcher records an electrocardiogram (EKG) of a diver during a cardiac health study of divers over 40.

Weight Training for Better Diving

Dive gear is heavy, but with weight training, you can gain strength and continue to dive. Learn exercises that will boost your overall fitness to dive.

Stock image of woman holding kettlebell