Shark Week: Shark Skin vs. Sandpaper
The MythBusters see if shark skin really is equivalent to sandpaper.
Most Watched in Saltwater Fish
Perfect Predators: The Bull Shark's Lateral Line
Bull sharks have a lateral line that makes them sensitive to vibrations in the water. Once vibrations are detected they go in for the kill. Learn more about the bull shark's lateral line on Discovery Channel's "Perfect Predators."
Perfect Predators: Mako Shark Speed
The mako shark is the fastest shark in the sea, giving it a distinct advantage over its prey. Learn what makes the mako shark swim so fast on Discovery Channel's "Perfect Predators."
Shark Week: A Nurse Shark's Diet
Unlike some of their more famous bloodthirsty cousins, nurse sharks eat a very particular, specialized diet. In fact, nurse sharks rely more on suction and determination than teeth.
Backend Eating Barracudas
The contents of any barracuda's stomach are likely to contain only the back-halves of its prey. Find out what happens to the head and the rest of the prey's body in this video.
I Was Bitten: Blood from a Shark Bite
Surfer Todd Endris lost so much blood from a shark attack, it's a wonder he survived. Find out what actions helped save his life in this clip from Discovery Channel's "I Was Bitten."
Perfect Predators: Bull Shark in Freshwater
On Discovery Channel's "Perfect Predators," see how bull sharks have developed a unique ability to move from salt water to fresh water, giving them a distinct advantage over their prey.
Perfect Predators Shorts: Mako Shark
A mako shark is the fastest shark in the sea; it is often compared to the cheetah on land. Learn more about the mako shark in this clip from Discovery Channel's "Perfect Predators Shorts."
Perfect Predators: Tiger Shark Teeth
Tiger sharks have rows of serrated teeth which make them perfect predators in the sea. Learn more about the tiger shark's teeth on Discovery Channel's "Perfect Predators."
Recent Videos in Saltwater Fish
Earth: Bizarre Giant Fish Filmed
A huge oarfish was caught on camera in the Gulf of Mexico recently, giving scientists a rare glimpse of the bizarre fish in its native deep sea habitat. Researcher Mark Benfield describes the fish, a likely inspiration for the sea serpent myth.
Discovery Adventures: Andy DeHart
Discovery Channel's Shark Week expert Andy Dehart has worked with sharks for nearly 20 years and explains his love for creatures of the deep.
Madman of the Sea: Bait Smell
Two-thirds of a shark's brain is devoted to smell ... bad news for a live tuna bait used to lure makos to Matt Watson's boat.
Madman of the Sea: Shark Out of Water
Matt Watson looks on as a fellow fisherman uses a small fish to catch a big fish so they can use the big fish to catch an even bigger fish: a shark.
Life: Flying Fish Fly
Flying fish fly to escape predators, and then deposit their eggs on a raft of palm fronds.
Superswarm: Fish Vortex
Spectacular swarms of schooling fish behave like a giant multicellular organism, moving and shape-shifting in collective response to feeding and danger.
LIFE in the News: Whale Sharks
On the new Discovery series LIFE, we meet some of the most majestic creatures in the ocean, including whale sharks. Kasey-Dee Gardner reports on these gentle giants after swimming with some.