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Once again Nature's Weirdest Events has trawled the internet, raided their contact book and scoured the scientific world to unearth a treasure trove of bizarre and baffling stories. Using UGC clips of the events themselves, Chris Packham deconstructs the weirdness using eyewitness accounts, scientists and Â鶹Éç archive footage.

In this series there is everything - from scores of pigs swimming in the Caribbean to the tiny tick that is turning America vegetarian. There is a giant worm decimating fish tanks, a strange blob appearing when comets are seen, a real-life sea serpent washed up on the Californian coast and a Japanese island swarming with rabbits.

From a crab milked for its blue blood and stones moving across the desert by themselves to a veritable swarm of rabbits, Chris Packham unravels nature's weirdest events.