Series 5

Chris Packham investigates the strangest stories from the natural world. He finds out why Spain is under attack from spaceballs, how a penguin became a man's best friend and discovers prehistoric lions that could be brought back from the dead. Chris also uncovers the origin of a mysterious underwater blob, unearths goblin's gold, reveals a slimy invasion in Florida and learns how one woman's nose could hold the key to detecting Parkinson's disease.

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.

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

Chris Packham investigates and solves the puzzle of strange balls of worms on a road and fish stuck in fences in Texas. He explains how an Australian town became plagued by giant bats, and why so many sperm whales became stranded around the North Sea in 2015. Chris also explores how a robot could help save the Great Barrier Reef, why eagles might be the best defence against dangerous drones and how the discovery of a spider in the Sahara could take us to other planets. Finally, he reveals new discoveries, like a strange alien cocoon in the Amazon, a plant that makes a home for a bat in Borneo and how the discovery of scratch marks on a cave wall in Western Australia sheds new light on an ancient and terrifying mystery.

In this episode, Chris Packham uncovers nature's super survivors - a frog whose dinner is fighting back, a shark with the secret to long life and a prehistoric fish with a thirst for blood that almost destroyed an entire fishing industry. A foray into freak weather reveals why a monster wave shocked swimmers in Sydney, and how two fisherman were engulfed by a fog tsunami on Lake Michigan. The senses also come under scrutiny as Chris investigates whether great white sharks like heavy metal and how one man literally eats his own words.

In this episode, Chris Packham unravels some of nature's oddest events. Featuring a deep sea blob spotted in the Gulf of Mexico that mystified oil rig workers and sent the internet in to frenzy, the washed up remains of a gargantuan creature that baffled scientists for decades and a stowaway spider with a set of unfathomable feet. Chris also investigates an octopus whose behaviour was so extraordinary that nobody believed it was real, the curious case of bright blue frogs appearing in pools in Germany, and an Australian lake the colour of bubblegum that had an evolutionary secret hidden within its lurid depths

In this episode, Chris Packham uncovers the mysterious sudden death of hundreds of reindeer in Norway, discovers a mythical boiling river in Peru and finds out why blood red rain appeared in Spain. Chris also reveals a bird that sings with its wings, a heartwarming stork romance and a woman troubled by alarming sounds form her body - she could even hear her eyeballs move!

In this episode, Chris Packham uncovers some bizarre events form the natural world. He examines a mysterious die-off of saiga in Kazakhstan, strange holes ripped out of the clouds and uncovers the real reason for a long line of pits carved out of the Peruvian desert. Chris charts the advance of a crab army in Norwegian waters, finds out what is killing off seabirds on remote islands, why spiders are glowing in the dark, discovers chimps with rock dolls and explores strange mineral deposits alive in the caves under France.