It's Shark Week's 30th anniversary celebrate with familiar faces like Craig Ferguson, Tracy Morgan, Andy Samberg and more as we count down the 50 GREATEST SHARK WEEK MOMENTS of all time!

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Bear Grylls has survived the most extreme environments, and now he's back for Shark Week 30th anniversary to test his wits and skills as he faces off with the ocean's apex predators -- sharks!

Shaq accidentally signed himself up to be thrust into the teeth of Shark Week's 30th anniversary, but he doesn't do sharks. To overcome his fear, he trains with ex-Navy and Marine comedian Rob Riggle for the big plunge.

Olympian and UFC Hall of Famer Ronda Rousey gets help from Paul De Gelder to train through three rounds of survival training against heavyweight opponents the Bull sharks, all building to a historic "Main Event"... swimming UNCAGED with Mako sharks!

In this thrilling and urgent Shark Week special, Aaron Rogers, Lindsey Vonn, and Robert Gronkowski join forces with shark scientists to learn crucial information about shark populations and how to save our ocean's top predators.

Dr. Mauricio Hoyos and shark experts Jimi Partington and Brandon McMillan embark on the first manned expedition to the darkest depths of the sea floor off Guadalupe Island, in search of the notorious 20-foot-long great white shark, Deep Blue.

In 1945, one of the largest sharks ever recorded was captured in Cuban waters, a great white named 'El Monstruo.' Two teams of researchers divide and conquer in search of Cuba's massive great hammerhead in 'The Queen' and 'El Monstruo'-sized great white.

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