Once in a Lifetime
Like many octopuses, the female greater blue-ringed octopus (Hapalochlaena lunulata) is a semelparous animal, which means she reproduces once and then dies.
Status Penelitian: Q3 2025
Diver Recall Systems
Whether for recreation, research, or commercial work, diving puts humans in a fundamentally hazardous environment. Visibility, pressure effects, and sound distortion limit communication between divers and surface teams, making real-time […]
Cruise Ships Are Stirring Things Up
Coral reefs are facing many environmental challenges, and cruise ships are a major contributor. One of these ships’ greatest impacts is starting to muddy the water.
Photography for Philanthropy
Think about the first time you picked up an underwater camera — what was the initial reason? Maybe you wanted a way to record your dives or a mechanism to show your nondiver friends and family the beauty of the underwater world.
Imran Ahmad
The sea enthralled lmran Ahmad from a very early age. Growing up in Singapore, young lmran never missed an opportuniry to go fishing with his father, a police officer, on their boat off the coast.
Diving with Type 1 Diabetes
Q: I was recently diagnosed with type 1 diabetes and will now require insulin. Will I be able to dive again?
Shocking Misconceptions About AEDs
The automated external defibrillator (AED) was developed as a portable medical device and released for public use in the 1960s. The operation of AEDs has gotten simpler over the years, and the devices are now widely available for use by lay providers with basic training.
Training Turns Incidents Into Inconveniences
I woke up excited for a routine day of diving at my local quarry. While the dive was not in idyllic tropical and clear conditions, I was getting to blow bubbles, which was enough for me.
Great Expectations
People expect recreational diving to be an enjoyable experience of adventure and fun. Divers are explorers and retain a sense of optimism regardless of how many dives they have done. While we dive with great expectations, incidents do occur — often when we least expect them.
Exercise and Decompression Risk
Being physically fit can be important, and sometimes crucial, for dive safety. Physical fitness plays a role in both regular dive activities and emergent events. A quick and effective response to sudden demands can often quickly and easily resolve a situation, while an insufficient response can prolong or exacerbate it.
