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13 Episodes 0 - 0
Episode 1
Episode 2
Episode 3
43 mins
What is the deadliest animal on earth? This countdown contains a reptilian monster with deadly dribble, an octopus with spit that's 10,000 times more deadly than cyanide, and a killer snail that injects its prey with a cocktail of toxins.
Episode 4
43 mins
The top ten most extreme cover-ups of the animal kingdom are revealed. Compare these animal imposters to human masters of disguise. Hiding in the countdown are lyrebirds that mimic the sounds of the forest - including chainsaws and cameras.
Episode 5
38 mins
From Texan caves containing 20 million bats and a 300 foot pile of bat guano, to Christmas Island where each year there's a stampede of 120 million red crabs. Never mess with the mob when swarms are taken to the extreme!
Episode 6
44 mins
You can pump iron as much as you like, but you'll never build a body like the unique physiques of the natural world. How would you like to be able to clean your ears with your tongue? Or have eyes the size of a beach ball?
Episode 7
Episode 8
46 mins
Get ready to discover that bathroom etiquette means nothing in the animal kingdom. See Hippopotami spray their droppings and spotted hyena turn their anal pouches inside out. Come join us as stench warfare is taken to The Most Extreme.
Episode 9
45 mins
Some animals possess surprising powers of perception! Starring in this countdown are pocket-sized primates with eyes bigger than their brain, elephants that can hear with their feet, and pigs with over 20,000 taste buds!
Episode 10
Episode 11
45 mins
Could you stay underwater for more than an hour or fly through the air using nothing but your own body? From flying snakes to rock climbing goats, these animal daredevils take adrenaline to a level so extreme, we humans can't even hope to compete.
Episode 12
Episode 13