The brothers visit Belgium's Pairi Daiza Zoo to meet pandas, walruses, penguins and the golden takin, all animals that have adapted to survive in the coldest climates.
Explore the fantastic features of the zoo's most weirdly wonderful animals. Hufflepuff the hedgehog tenrec enjoys a dust bath, and Jua the serval puts her radar ears to the test.
The brothers learn about animals that like to take things slowly. They discover the top speed of a giant African land snail and see just how slow a sleepy sloth can get.
Looking to help protect the planet Cam, Tyler and Aaron take inspiration from the zoo's animal eco heroes, including pygmy marmosets, Amur tigers and orangutans.
Meet the zoo's powerful animals as Sonika the Asiatic lioness gets a grip in a tug-of-war and Tyler takes on Marion the sulcata tortoise in a contest of strength.
The brothers learn all about different types of cosy animal dens. Bird expert Nadeem helps Cam build a bird box, and Aaron reveals why the Asiatic lion is most endangered.
The One Zoo Three brothers meet the zoo's shyest animals as Cam is challenged to a game of spot the reptile, and Tyler tries to tempt Rambutan the binturong onto his new platform.
Trying to solve the case of the mystery footprints, the brothers look at the animals' feet. Could it be the penguin chicks, the snow leopard cubs, or something far more peculiar?
While the brothers are making sure all the habitats are squeaky clean, they discover how much they can learn from the animals themselves, as they are nature's best clean-up crew.
The brothers hold a party to welcome some a red panda, two cheetah brothers and some sand lizards to the zoo - but will Cam be able to collect the wriggly lizards?
