Craig Ferguson takes a look at some small, medium and large-sized shark teeth. Will he have second thoughts about getting in the water with them?

Shark After Dark's Taryn Southern and Bob the Shark meet Sharkzilla, a Megalodon-sized mechanical shark, at VidCon. They're joined by Tory from MythBusters.

On Shark After Dark, Bob the Shark heads to SeaWorld to meet with the humans (don't worry, Bob doesn't bite) and his archenemies: the dolphins.

On Shark After Dark, Blimp from "Voodoo Sharks" shows off his unique Shrimp Dance.

Tickle from Moonshiners shares some of his favorite concoctions with Shark After Dark host Josh Wolf, and Bob the Shark feels left out.

On the final night of Shark After Dark, Bob the Shark faces off against his "alien shark" cousin Blorb the Shark, aka the Tom Green of the Ocean.

Bob the Shark and David "The Hoff" Hasselhoff sing the Shark After Dark theme song (now huge in Germany) and has a shark-to-shark chat with Sharkzilla.

On Shark After Dark, host Josh Wolf tosses to a clip of Ian Ziering in Sharknado... but no wait, it's actually a clip of Ian dancing at Chippendales!

On Shark After Dark, Taryn asks Bob the Shark and Dominic Monaghan questions from our Twitter audience. #SharkAfterDark

Kari, Grant and Tory from MythBusters unveil Sharkzilla, an INSANELY AWESOME replica of a Megalodon, a giant ancient shark that measured over 50 feet in length.

Was the ancient shark Megalodon capable of biting an entire whale's head off? Watch our test chomp to find out if this is even remotely possible.

On Shark After Dark, actress Tara Reid ponders how whale sharks are made (whale shark = whale shark?) and other shark mysteries...

On Shark After Dark, Bob the Shark returns and somehow ends up on a plane with actress Tara Reid and actor Ian Ziering...

Watch the best of Bob the Shark from Shark After Dark, Discovery's first live late-night talk show, on Sunday, August 4.

On Shark After Dark, actress Alison Sweeny shares the shocking tale of a reality contestant's fear of sharks.

Shark After Dark host Josh Wolf faces his fears and goes diving with sharks, along with his pal television personality Carrie Keagan.

Shark Week, kickin' it old school all summer long since 1987. Thank you for celebrating our 27th year with us.

The Prince Edward Island shark (PEI) is the largest accurately measured shark on record. DNews and Discovery placed her at #2 in our countdown of the Top 5 Legendary Sharks.

It's lights, camera, action on the stealthy sevengill sharks, but the divers get a little more action than they bargained for. From Shark Week 2015's "Sharks of the Shadowland."

A shortfin mako, the fastest shark in the world, races after bait in this unprecedented perspective from Shark Week 2015's Monster Mako.

On Shark After Dark, Epic Meal Time's Harley Morenstein shows Josh and Taryn how to create "Human Chum." The secret ingredients: bacon and Nutella.

A "shark eye camera" transforms a leopard-patterned swell shark into a neon green alien. This green biofluorescence helps swell sharks attract one another and camouflage themselves on the reef. From Shark Week 2015's "Alien Sharks: Close Encounters."

Behold the beauty and grace of the shark.

As thousands of people and blacktip sharks head to Florida for Spring Break, will great whites show up for an easy meal? From Shark Week 2015's "Shark Trek."

The hammerhead shark uses its giant t-shaped head to detect the electric fields naturally given off by stingrays buried beneath the sand. From Shark Week 2015's "Ninja Sharks."

In today's countdown, Andy Casagrande reveals which Shark Week moment made it to fourth place!

A giant white shark stakes her claim on the WASP, a one-man shark cage. Will she let the diver inside (Chris Fallows) escape with his life? From Shark Week 2015's "Air Jaws: Walking With Great Whites."

On Shark After Dark, surf legend Laird Hamilton and Blimp from "Voodoo Sharks" explain why bananas are not allowed on fishing vessels.

Low on air, Andy and Devon head back to the boat in their one-man Shark Rovers, but a group of curious great whites have other plans... From Shark Week 2015's "Shark Alley: Legend of Dynamite."

Frustrated by Joan of Shark's elusiveness, the crew decides to "make it rain," showering Elise in chum. Will the blood bath do the trick? From Shark Week 2015's "Bride of Jaws."

A diver grabs the dorsal fin of a great white and takes a ride.

On Shark After Dark, Blimp from "Voodoo Sharks" shows off his unique Shrimp Dance.