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In this episode, Chris Packham uncovers nature's super survivors - a frog whose dinner is fighting back, a shark with the secret to long life and a prehistoric fish with a thirst for blood that almost destroyed an entire fishing industry. A foray into freak weather reveals why a monster wave shocked swimmers in Sydney, and how two fisherman were engulfed by a fog tsunami on Lake Michigan. The senses also come under scrutiny as Chris investigates whether great white sharks like heavy metal and how one man literally eats his own words.
