Media Gallery: Stories

Caribbean reef sharks swim over a coral reef in the Bahamas.

Ocean Portal's Top Shark Resources

Caribbean reef sharks swim over a coral reef in the Bahamas. Credit: © Brian Skerry, www.brianskerry.com Every summer since 1987 (that's right, shark week is over 25 years old!) the Discovery Channel...
Freshly cut dorsal fin from a scalloped hammerhead shark held by fisherman with knife.

Shark Finning: Sharks Turned Prey

A fisherman holds a freshly cut dorsal fin from a scalloped hammerhead shark (Sphyrna lewini). Every year, humans kill an estimated 100 million sharks. Removing sharks in large numbers can have...
A photo of a squid using bioluminescence to hide in the deep sea.

Bioluminescence

You may have seen the sparkle of fireflies on a summer’s night. The fireflies produce light through a chemical reaction in their glowing abdomens, a process known as bioluminescence. But did you know...
A blue-ringed octopus

How Octopuses and Squids Change Color

Video of Where's The Octopus? by Fox Meyer Squids, octopuses, and cuttlefishes are among the few animals in the world that can change the color of their skin in the blink of an eye. These...

The Enchanting Sea Monsters on Medieval Maps

Fictitious animals on 16th and early 17th century maps hint at how people’s perception of the ocean has changed over time Jonah is cast overboard to a sea monster in an image from the earliest known...

Currents, Waves, and Tides: The Ocean in Motion

Credit: Yasmine Abulhab At the entrance of most beaches, there is a bulletin board with notices about water conditions: maybe a faded sign warning about rip currents and a list of this week's tide...
A decomposing sea star loses its grip on a rock.

Sickly Starfish: A Q&A with Dr. Chris Mah

A morning sun star ( Solaster dawsoni ) loses its grip on a rock surface as its body slowly decomposes from starfish wasting syndrome off the coast of Vancouver in September 2013. Credit: Jonathan...
A shell placed in seawater with increased acidity slowly dissolves over 45 days.

Ocean Acidification

Ocean acidification is sometimes called “climate change’s equally evil twin,” and for good reason: it's a significant and harmful consequence of excess carbon dioxide in the atmosphere that we don't...
A manatee swims in Crystal River, Florida.

From Mermaids to Manatees: the Myth and the Reality

Florida Manatee (Trichechus manatus latirostris) swimming within a fresh water spring on Crystal River in Florida. Note the tree roots on the right of the frame which make up a portion of this unique...

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