Oxygen Toxicity Research

Jay Dean, PhD, is a professor of molecular pharmacology and physiology at the University of South Florida (USF), where he studies the effects of oxygen, carbon dioxide, and barometric pressure on the mammalian central nervous system.

hyperbaric research radio telemetry chamber

Nestled in God’s Pocket

A visit to God’s Pocket Marine Provincial Park in British Columbia, Canada, is worth experiencing wherever you live, local or not.

sea lion (Eumetopias jubatus) rests on a rock

Diver and Dive Operator Ethics

My first reality check as a dive professional came after a week of working with a couple. Every day they asked for private dive guides and customized support.

illustrating an in-water rescue tow back to the boat

Birds of the Sea

One of the greatest symbols of wildlife in the animal kingdom, penguins endear themselves with their comical antics and wow us by thriving in unbelievably hostile environments.

king penguins

Surface Tows Against Current

It was a sunny day at South Florida’s Blue Heron Bridge. Two years had passed since I last dived this location, and I was anticipating a simple excursion to look at the local fish. The dive plan was to make a shore entry and allow the current to take me west down the beach.

Doing a site survey or contacting a local dive shop