How do trees grow? Can trees get sick? If a tree falls in the woods ...? Kellyn & Co come up with answers to questions about trees.
With every disaster that could befall humanity in mind, Stephen Hawking explains why we need to colonise another planet — and how.
The world's largest living structure, the Great Barrier Reef, is home to curious residents and seasonal visitors.
With added facts. The team welcome two rescued southern sea otter pups, Mara and Gibson, from the California coast. Young ruddy ducks arrive at the aquarium and are introduced to their new habitat.
With added facts. A staff member heads to the Marine Mammal Center in California to help in rehabilitation efforts of elephant seals. African penguins Charlie and Lizzie have been together for 25 years.
Mkhaya, the youngest baby elephant in the Safari Park, learns to use her trunk. Will Alba the Andean bear become a first-time mum? Vets examine Mandazzi the gorilla. Jeff looks for a coastal patch nose snake.
Sharks are more than just hunters. Only now are discoveries revealing a hidden side to their character. They have an intricate social life, complex courtship rituals, surprising ways of bringing up their young, and extraordinary powers of navigation. They can forge relationships with the strangest of partners, even us! This is the secret life, of the shark.
Safari Park keepers say goodbye to two elephant brothers. Can the zoo vets design a custom shoe for Felix, an excitable three-toed Baird's Tapir? Two African penguin chicks grow up and join the colony.
A rescued sea otter must build his independence after becoming too attached to his best friend; over 50 African penguins are moved for spring cleaning.
Trainers prepare rescued sea lions for eye surgery; the team travels to the Bahamas to collect blood samples from native sharks; staff devise new enrichment for giant octopus Ophelia.
A southern sea otter is rushed to the health centre; the team help coral restoration efforts; young African penguins prepare for an upcoming event.
The zoo says goodbye to beloved pandas Bai-Yun and Xiao Liwu, as mother and cub prepare to return to China; Tembo the retired "Hollywood" elephant tries traditional Chinese medicine for her arthritis.
Anatomist Dr Alice Roberts follows a dinosaur exhibit from raw bones to colossal models.
After devouring all his tankmate's food, a hungry sea turtle finds a space to eat in peace; two beluga whales are welcomed to their new home.
The Coral Triangle contains more than three quarters of the planet's coral species, and the world's largest and smallest fish.
In Oran, resident Zaki Souffi goes shopping in the jedida market. He visits the home of the city's most eminent emigre, Yves Saint Laurent, and has a local snack of karantika.
With added facts. A sweet beluga whale trains with staff to go on the 'whale scale'. Blacktip reef shark L2 is not eating normally and staff work to figure out why. See the first sea lion born at the aquarium.
With added facts: beloved Asian small-clawed otter Pinkie has a recurring bloody nose and the team must find out what is causing it. Feisty baby American alligators arrive at the aquarium and must learn to eat in an orderly way.
Safari Park keepers prepare Aria the rambunctious black rhino for her new life on the open African Plains exhibit; zoo staff cares for 15-year-old legend M'bari the lion and his mate, Etosha.
Hunter the koala is ready for a mate; Jaws the Galapagos tortoise isn't feeling well; the Safari Park has not one but two baby giraffe calves that need to be hand-reared simultaneously.
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