Discover why sea lion pups are invading restaurants, why Spain is being bombarded with spaceballs and how prehistoric lions could be brought back to life.

A look at the strange case of a mystery stinger in Australia, the way in which a scientist gets poisoned on a jungle expedition, and reasons for goats flying in Utah.

Chris investigates why a much-loved dolphin has started breaking people's bones, how a tiny crustacean has mastered the art of invisibility, and why a caterpillar wears a hat made out of its own spare heads.

Discover the science behind the puzzle of strange balls of worms on a road, and how an Australian town became plagued by giant bats.

Chris uncovers a prehistoric fish that almost destroyed an entire fishing industry and a shark with the secret to long life. A foray into freak weather reveals why a monster wave shocked swimmers in Sydney.

Chris looks at a mysterious deep sea blob that was spotted in the Gulf of Mexico that has left oil rig workers mystified. Plus, the washed-up remains of a gargantuan creature that have left scientists baffled for decades.