The aptly named shark is cloaked in black from head to tail and emits a faint blue glow.

FISH
For starters, you shouldn't expect oysters from the Pacific and the Atlantic to taste the same.
How exactly did this ethereal-looking tropical fish go from tank to trouble?
Mangrove rivulus fish use dry land the same way we use swimming pools.
The cartoon hammerhead helps protect endangered sharks one smile at a time.
For his 1952 novella 'The Old Man and the Sea,' Ernest Hemingway based some qualities of his lead character on his own fishing boat captain.
The Mola mola—which looks like a prehistoric shark that lost a tail in an epic battle—might be the world's weirdest fish. Here are just a few reasons it's the most fascinating marine creature around.
Why do Catholics swap Big Macs for Filet-O-Fish during Lent? According to Saint Thomas Aquinas, the meat/fish divide boiled down to sex, simplicity, and farts.
While they might be bright red when they hit your dinner plate, crabs and lobsters are usually brown, olive-green or gray when alive and in the wild (at least in the mid-Atlantic U.S.; crustaceans farther south come in a variety of vibrant colors).