Today's Catch

Superheated magma slowly leaks from a crack in the seafloor.

Superheated Magma Underwater

Superheated magma, about 2,200 degrees Fahrenheit, glows orange as it slowly leaks from cracks along the six-mile long active rift zone of the West Mata Volcano in the Pacific Ocean near Fiji. The slow-leaking magma doesn't erupt, but bubbles out...
Beautiful crab water colors

Trapezia Crabs Watercolors

These watercolor sketches of Trapezia crabs were drawn by Frederick Bayer, a former Smithsonian coral biologist, in 1947. Trapezia crabs live on and within corals, feeding on their tissue and mucus, and protect them from predators such as crown-of-...

Video of Cirrate Octopod aka Dumbo Octopus

This octopod is sometimes called a “Dumbo” octopod because its fins resemble the ears of Disney’s Dumbo the elephant. The video was recorded in 2003 on the Mid-Atlantic Ridge by the Russian manned submersible MIR 2. More about deep ocean exploration...
A whale size comparison chart

What is the Largest Whale? A Cetacea Size Comparison Chart.

How do right whales size up? North Atlantic right whales ( Eubalaena glacialis ) are big, but they're not the biggest whales. That distinction goes to the blue whale ( Balaenoptera musculus ), the largest animal on Earth. The orca's size of up to 31...
Hammerhead Shark, Cocos Island, Costa Rica

Hammerhead Shark, Cocos Island, Costa Rica

“This shark was cruising low along the reef known as Alcyone. Her left eye was glancing up toward other hammerheads when I took this shot from below.” -- Nature's Best photographer, Alan Studley. See more beautiful ocean photos in our slideshow of...
The Charles W. Morgan tallship

Charles W. Morgan

The Charles W. Morgan sailing en route to Newport on June 15, 2104. Built in 1841, the Charles W. Morgan sailed on 37 voyages to remote corners of the globe during her 80-year whaling career. The Morgan departed in spring 2014 on her historic 38th...

How a Microscopic Team Alters the Course of Carbon in the Atlantic Ocean

The Amazon river is the largest river in the world. It drains the entire Amazon rainforest, sending leftover nutrients, detritus, and minerals from the South American jungle out into the tropical Atlantic Ocean. This runoff forms a freshwater plume...
A Turtle Excluder Device (TED) enables a loggerhead turtle to escape from a net.

Loggerhead Escapes from Fishing Net

One of the biggest threats to sea turtles, such as the loggerhead turtle ( Caretta caretta ) pictured here, is being accidentally caught and killed in fishing nets. Trapped in a net, the turtles are dragged through the water with no access to the...

Turning Nets Into Carpet

There are many plastic nets floating in the world's ocean. Some of them were lost at sea by fishers; others were discarded overboard when they ripped or became tangled. Regardless, once they are adrift, they catch and kill many sea creatures that...
Algae or "seaweeds" (left) differ from seagrasses (right) in several ways.

Algae vs Seagrass

Algae or "seaweeds" (left) differ from seagrasses (right) in several ways. Algae on the seafloor have a holdfast and transport nutrients through the body by diffusion, while seagrasses are flowering vascular plants with roots and an internal...

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