Chris Packham delves into the world of weird. Tales include something strange in the water in the Caribbean, a four-foot worm in a fish tank and a tick turning America vegetarian.

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 BBC archive footage. In this episode there's something strange in the water in the Caribbean, a four-foot worm in a fish tank and a tick turning America vegetarian.