Migrations are ticking clocks: animals must move or die, driven by changing seasons and climates. They race to reach their destinations before it's too late to breed, feed or simply stay alive.

Every migration is an epic journey, driven largely by hunger. Every day, trillions of creatures, from microscopic plankton to rare desert elephants face arduous journeys in search of greener pastures.

Witness awe-inspiring stories of species' need to reproduce such as stunning footage of flying foxes soaring across the skies with their young wrapped in their wings and the remarkable breeding behaviours of elephant seals in the Falkland Islands. For the first time in nearly 30 years, see the white-eared kob performing a deadly mating ritual in Sudan.

Gripping stories of birth, death, struggle and renewal are told in this collection of stunning footage from the Great Migrations series, set to an original score in a moving visual concert.

Investigate the mysteries behind some of Earth's most impressive and puzzling migrations using the latest technologies and field research.

National Geographic crews took dramatic measures over years in the field in pursuit of painstaking shots, including facing sandstorms, swimming with sharks, entering war zones and dangling off cliffs.

Andy Day knows young animals all have favourite meals. For meerkats, a scorpion is a tasty treat. In Finland, racoon dog pups stock up before winter arrives, and young capuchin monkeys enjoy shellfish.

The Last Charge On a hillside near Bathurst, sculptor Harrie Fasher has created a striking memorial to the Australian Light Horse and the last great cavalry charge at Beersheba. Hero Dirt Five years ago the old tin-mining town of Derby was a ghost town. But a move to construct some mountain bike trails helped trigger an economic revival. The town is now booming and has been transformed into a world-class biking destination. Au Naturel Fish bladders, bone marrow and milk protein are just some of the animal-derived agents that might be incorporated in the winemaking process. As demand for animal-friendly products increases, so too are the number of wineries using alternative production methods to create vegan wine.

A 200 million-year-old fossil - the bones of a giant sea dragon - has been discovered on the Jurassic coast of Britain. David Attenborough joins the hunt to bring this ancient creature's story to life.

In Antarctica, a seal pup takes its first journey under the ice. Leopard cubs must climb as they explore the river bank with mum. A tiny goby fish faces a huge obstacle - getting up a waterfall.

Andy Day sees how coatis follow mum's tail to safety in the forest. Eider ducks keep a wolf busy while their ducklings find a safe spot. The big mouthed hap is strangest of all - the young fish hide in its mouth.

In Africa, young meerkats learn to look out for their mob. Emperor penguins work together to keep their chicks fed and warm. The fry of convict fish stick together in a shoal to fool bigger fish.

Andy Day sees how lions aren't born with a loud roar. In Antarctica, a penguin chick can be heard by his mum despite 150,000 others. A baby macaque must learn the value of funny faces if she is to fit in.

David Attenborough tells the revealing story of this Caribbean island's exotic but vulnerable wildlife. We see how Puerto Rican parrots, manatees and turtles are now making a comeback.

The sengi is one of the fastest small mammals on earth - it even has a racetrack. In the Arctic, guillemot chicks leap from clifftop nests. Chacma baboons walk upright to reach the best food.

In Antarctica, a wandering albatross chick masters the largest wings of any bird. Swinging through the rainforest, lar gibbons seem to be flying. Great grey owl chicks leap from the top of huge trees.

Andy Day loves the tricks young animals learn. Californian ground squirrels use an old snakeskin to confuse a hungry rattler, and the coconut octopus rolls away from trouble in an old shell.

Cricket Pitch Whole stretches of the Lower Darling are so dry you could hold a cricket match in the river bed. So residents from around Tilpa decided to do just that. It helped take their mind off the drought as well as drawing attention to their plight. Essential Oils More than 90 percent of essential oil produced in Australia is being sold overseas. As demand grows, so do opportunities for our farmers. Rare Beef A 100-strong herd of distinctive long-haired, long-horned cattle are thriving on a farm in Tasmania's Derwent Valley.

Andy Day knows young animals learn by playing. Polar bear cubs in the Arctic and langur monkeys in India all love to play. But gorillas are playtime masters - they climb trees, roll around and try to beat their chests.

Swimming lessons for young animals with Andy Day. In New Zealand, baby fur seals choose a safe pool in a river. In Antarctica, Adelie penguin chicks have to learn how to sink.

Finding breakfast takes practice. Andy Day presents a young sea otter watching mum cracking shellfish open. Capuchin monkeys must learn how to break into yummy nuts, and an elephant calf learns how to use its trunk.

Andy Day sees how young animals get a ride. In Madagascar, ring-tailed lemurs get a piggyback from mum. Kangaroos have a special pouch to hold their babies, while tiny poison dart frogs carry their tadpoles up into the trees.

People Power Regional communities are leading the way when it comes to the supply of fair-priced, sustainable, reliable electricity - by funding their own wind and solar projects. Around 70 community energy projects have started up around the country in the seven years. Tassie Bubbles Sparkling wines from Tasmania are taking on the world's best.

Fishing lessons for young animals. Mum finds it easy, but fish slip away from young grizzly bears in Canada. Oriental darters practice with twigs. River otter pups watch mum's sat nav guide her to the fish in North America.

Andy looks at baby animals as they learn how to get around. Wildebeest can learn to stand just minutes after they are born. Adelie Penguin chicks must race to catch a parent for food, caiman need to be dug out of their nest.

Andy Day looks at baby animals as they learn jumping skills. Springbok don't just jump, they pronk, the odd-looking jerboa jumps to avoid danger, and the Arctic fox pups jump to help them burst through the snow to find food.

Andy Day looks at a selection of baby animals as they learn how to warm up and cool down. When king penguins are too cold they huddle together, but when they're too warm they cool down with a mud bath.

Black bears make excellent climbers, but that doesn't mean the young don't have to practise this vital skill needed for food, safety and somewhere to rest.

Andy Day looks at baby animals' tricky first steps. Polar bear cubs slip on the arctic snow. In Africa, a baby elephant needs mum's help to stand up. Mandarin ducklings face a huge leap from their tree trunk nest in Russia.

The Emu Effect In the early 1990s emus were billed as the 'next big thing' in Australian agriculture. At its peak the industry had an estimated 500 emu farmers nationwide. For the dozen farmers who remain, the benefits are starting to flow - thanks to emu oil. Water Wars Some farmers and residents fear their most precious resource, groundwater, is being squandered for bottling. Truck Safety A transport company is leading the way in road health and safety by using a 'fatigue and inattention' system to monitor driver performance.

Staying Power Roly Lennox started hawking fruit and veggies to housewives as a teenager in the 1940s, but after 70 years and millions of kilometres, he has completed his final delivery at the age of 86. Field of Dreams A pioneering family on Tasmania's iconic north coast took a chance on tulips to ensure their farm business blooms into the future. Golden Future A world-class integrated oilseed crushing and refining plant in the heart of the Riverina region is the brainchild of an Indian-Australian entrepreneur.