Vi får reda på varför rymdbollar attackerar Spanien, hur en pingvin blev en mans bästa vän, och upptäcker förhistoriska lejon som kunde återföras från de döda.
Examining the bizarre case of a mystery stinger in Australia, how a scientist was poisoned on a jungle expedition, and why goats are flying in Utah.
Find out why a much-loved dolphin has started breaking people's bones, 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.
Revealing a prehistoric fish that almost destroyed an entire fishing industry, and a foray into freak weather reveals why a monster wave shocked swimmers in Sydney.
Featuring a deep sea blob spotted in the Gulf of Mexico that mystified oil rig workers and the washed-up remains of a gargantuan creature that baffled scientists for decades.
Find out why hundreds of reindeer are mysteriously dying in Norway, why there's a mythical boiling river in Peru and why blood-red rain appeared in Spain.
Find out about the advance of a crab army in Norwegian waters, why spiders are glowing in the dark and meet the chimps with rock dolls in caves under France.