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an elephant seal with a tracker
Article

Citizens of the High Seas

In a world where land is partitioned into countries with defined borders, the ocean...
August 2019
Grey reef sharks are among the most versatile and tough predators on a Pacific coral reef, but they are also among the most vulnerable species, as they are threatened by wasteful fishing practices like shark finning.
Article

Where the Shark and the Snapper Roam

The pre-industrial American landscape was once rightly described as a place where...
March 2014
A whale shark swims with a diver off the coast of East Africa.
Personal Perspectives

The Big Five of the Ocean: Exploring the Waters of East Africa

When we think "Africa," we think of the "Big Five"—lions, elephants, leopards,...
November 2012
An underwater photo of Southern Bluefin Tuna swimming above a fish farm net.
Article

Tunas and Marlins Officially Classified as Threatened

Extinction is a real possibility for three species of tunas. That’s one of the...
July 2011
Photo of the head of a leafy seadragon
Article

Devoted Dads: From Seahorses to Sea Spiders

If youngsters get cared for at all, the mother is usually involved. But in fish and...
June 2011
Home is where the hull is: Since the dawn of seafaring, humankind has had to deal with pesky creatures, such as barnacles, that “foul” ship hulls and boat propellers like this one.
Personal Perspectives

No Fouling Around

Since the dawn of seafaring, humankind has had to deal with the pesky creatures...
December 2010
Overfishing is leading to an abundance of less desirable species like jellyfish.
Personal Perspectives

Peanut Butter and Jellyfish

All over the world, people have been witnessing gigantic blooms of tens of...
November 2010
A scalloped hammerhead (Sphyrna lewini) at Isla del Coco, Costa Rica.
Personal Perspectives

Do Sharks Smell in Stereo?

Animals, on land and in the ocean, live in a 3-D world, and they depend on their...
November 2010
A school of bluefin tuna
Article

The Great Pacific Migration of Bluefin Tuna

Shortly after their first birthday, Pacific bluefin tuna (Thunnus orientalis)...
September 2017
Map showing the range of the eastern and western populations of Atlantic bluefin tuna and their spawning grounds in the Gulf of Mexico and the Mediterranean Sea.
Article

Atlantic Bluefin Tuna (Thunnus thynnus)

Because of consumer demand for sashimi (a fresh raw seafood dish), the fishing...
September 2009
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