Chris Packham investigates some of nature's strangest stories. He examines the bizarre case of a mystery stinger in Australia, finds out what poisoned a scientist on a jungle expedition, why goats are flying in Utah and why albatross are being planted in flowerpots off the coast of New Zealand. Chris also unveils the secret behind a mystery spectre in the clouds, reveals why chimpanzees are having rituals and who, or what, were the source of some bizarre prehistoric handprints in Egypt.

• Jody Bourton

• Chris Packham