April 2024

Some of the historic and modern-day mussel shells used in the study

Mussel shells along US East Coast have higher porosity

Researchers from the American Museum of Natural History have discovered that the porosity in mussel shells along the East Coast of the United States has increased. The cause is believed to be rising ocean temperatures.  

Porosity can affect the structural integrity of mollusk shells, so this means that the shells are weaker and thus more susceptible to damage. 

The findings was published in the journal PLOS ONE

Screening of 50 hours underwater – a dive for hope

Providing a rare glimpse into the mysterious underwater world, the documentary features captivating stories untold, vibrant visuals, and thought-provoking themes that speak of resilience, triumph and societal issues.

In celebrating the incredible diversity and complexity of the underwater world, along with its numerous characters and issues, the documentary aims to ignite conversations and foster better understanding of, and appreciation for, the deep blue.

How Lack of Sleep and Water Intake Affect Your College Grades

Introduction: Understanding the Impact

College life can be an exhausting whirl of activities, assignments, and deadlines that leaves students juggling multiple responsibilities. Two essential components often overlooked during this hectic routine are sleep and hydration - both play a significant role in academic performance. An inadequate amount of restful sleep has detrimental effects on cognitive function, memory retention and mental wellbeing; fatigue reduces focus and impairs cognitive abilities, which all negatively impact college grades.

Diving into adventure in Italy and Spain

Descending into the crystal-clear waters off the coast of Sardinia is an exhilarating experience, as the vibrant blue hues of the Mediterranean Sea quickly engulf you. Suddenly, a flash of movement catches your eye—a pod of bottlenose dolphins gracefully glides by, their sleek bodies cutting through the water with absolute ease. As they approach, their playful curiosity becomes apparent, their intelligent eyes studying our group of divers with interest. In that moment, the incredible diversity and beauty of the marine life that call the Mediterranean Sea home is undeniable.

Long-spined sea urchins
Long-spined sea urchins (National Marine Sanctuaries/CC BY 4.0)

Transglobal Spread of a Sea Urchin Parasite

The study identified the parasite that devastated 95 percent of long-spined sea urchins in affected areas in the Caribbean Sea two years ago. It burrows into the tissue of the sea urchins and triggers abnormal behaviour. The urchins droop and lose their ability to control their tube feet, which are crucial for movement. They lose their spines, then tissue necrosis sets in, leading to the death of the sea urchins.

Tones & Tonality: Contributors' Picks

Photo by Scott Bennett: Bigeye jacks, Sipadan, Malaysia—cool tones. Gear: Nikon D200 camera, Sigma 10-20mm lens at 10mm, Hugyfot housing, two Ikelite D125 strobes. Exposure: ISO 100, f/6.3, 1/80s.

We asked our contributors to share their favorite underwater photos that showcase tones and tonality, and they returned with a range of wide-angle and macro shots featuring a variety of marine life, reefs and topography.