Regulator Service: A Lot More Than Meets the Eye
You take your regulator into a local dive center for its annual service and pass it over the counter to the salesperson, who hands…
The Library
Managing Motion Sickness: New Alternatives for Divers
Motion sickness (seasickness, or mal de mer) is a common annoying, and sometimes disabling, problem for boaters and divers. Those who have suffered the…
THE STARS OF THE SHOW: MARINE MAMMALS
Phylum: Chordata (cord) Subphylum: Vertebrata (animals with backbones) Class: Mammalia (mammals) There is little doubt that marine mammals occupy a special place in our view…
The Stars of the Show: The Fishes
Phylum: Chordata (cord) Subphylum: Vertebrata (animals with backbones) Class: Chondricthyes and Osteicthyes (Cartilaginous Fishes) (Bony Fishes) I suppose there are those of us who…
The REPTILES – Sea Snakes, Sea Turtles and Marine Iguanas
Phylum: Chordata (cord) Subphylum: Vertebrata Class: Reptilia Note: This article is the ninth in a series that elaborates upon the natural history of the…
On The Brink of Extinction: Examining How the U.S. Endangered Species Act Works
A white cloud of mist spouts from the ocean’s surface, followed seconds later by the rise and fall of an enormous fluked tail. A…
Echinoderms: Sea Stars, Crinoids, Brittle Stars, Basket Stars, Sea Cucumbers, Sea Urchins and Sand Dollars
Phylum: Echinodermata (spiny-skin) Whether you are a newly certified diver (if so, we offer our congratulations) or an old salt (good for you, too),…
Back Basics: Exercises to Keep Your Back Scuba-Ready
Low back pain is a very common medical problem, estimated to occur in about two-thirds of adults. Because divers must move around a great…
earth’s ocean: The Geology of the Sea
Note: This article is the last of a four-part series that examines the primary disciplines of oceanography. Geological oceanography is a discipline of ocean…
Arthropods: Lobsters, Shrimps, Crabs, Barnacles and the “Pods”
Phylum: Arthropoda (from the Greek words arthros, jointed, and podes feet) While many humans consider our species the supreme beings on Earth, it is…