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.

Cooperative feeding among sharks is rare, but these reef sharks decide they just might be able to help each other out in this scene from "Shark City."

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.

Celebrate 25 years of Shark Week with this "Best Bite" from 2010.

Celebrate 25 years of Shark Week with this "Best Bite" from 1999.

Can a shark drag you into the water if you're standing on shore? Our host, Terry, uses a 100-pound sand bag and a piece of bait to find out.

A school of blacktip reef sharks surround our cameramen. When a feeding frenzy kicks off, will the sharks go for "Bite Cam," or Mark and Andy?

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.

Celebrate 25 years of Shark Week with this "Best Bite" from 2001. This Shark Week moment is presented to you by the Volkswagen Beetle.

Dave Canterbury and Cody Lundin of "Dual Survival" hope to find out if tiger sharks hunt differently as night. The sharks seem more comfortable at night. Maybe a little too comfortable!

A great white shark attacks a decoy being towed behind a boat. Watch the feeding frenzy in Great White Appetite!

Great white sharks attack Bite Cam as our hosts attempt to answer the question, "What it would look like to be swallowed by a great white shark?"

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?

Celebrate 25 years of Shark Week with this "Best Bite" from 2010.

Sand tiger shark pups have a strange diet: they feast on one another while still in the womb. As adults, these nocturnal "nightmare" sharks eat dolphins and other sharks.

Celebrate 25 years of Shark Week with this sneak peak from 2012's Air Jaws Apocalypse.

How do shark eating habits stack up against those of humans? Find out which species eats more ravenously, which has pickier food choices or which will devour just about anything.