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Our teenage pups are negotiating their tricky adolescent months. Can troubled teen Rory avoid being rejected by yet another owner? Big Ron faces bath time. Giant pup Baloo cools down with a trip to the snow dome.

Follow some adorable puppies through their troublesome teenage months. We catch up with English bulldog Big Ron, miniature schnauzer Willoughby, Dalmatian Suki, and Baloo, a giant Pyrenean mountain dog in a puppy's body.

Some very special puppies enter a new phase of their lives - as they leave their littermates and join their new human families. Watch as they form bonds that last a life time and become man's best friend!

Puppies experience the most remarkable changes; transforming from helpless, blind newborns into capable canines. Watch as every sight, sound and smell they encounter forms the building blocks of their personality.

For thousands of years mankind lived as hunters and gatherers, following the crops and the animals. But something happened that made us go from a simple nomadic lifestyle to creating civilizations that through farming and domesticating of animals began to build villages. In this film we will explore the importance of water in the transition from simple villages, to flourished kingdoms, to the construction of the Great Wall of China. We take a closer look at Mesopotamia, Ancient Egypt, Indus Valley and China, and learn how they developed river valley civilizations.

The team explores the threat of landslides in the UK. Leah travels to the Isle of Wight to discover why it's under the constant threat of eroding rocks. Dougal explores the biggest sinkhole in Britain.

Crab sideways walks in to tell us that there are nearly 4000 species of crab like him coming from far and wide, and living in both the water and on land.

The butterfly fish takes some time out from being good-looking to tell us how he pecks at coral with his long snout for food, and how he uses his good-looks to confuse and camouflage himself.

The sawfish wakes up from his sleep to show us all of the uses for his saw-shaped nose, including catching food, digging and defending himself.

Here, flying around a pond, we meet a newly grown up dragonfly. While she may have spent two years growing up underwater, she's only going to be an adult for two weeks.

The aggressive and pushy lionfish shows us what he's made of and why few fish would dare to mess with them, and to those that would, he's a kitten.

Meet the moth, a voiceless critter that dreams of one day being in the spotlight. She tells us about how she loves the light and flower nectar but it's a shame she doesn't get more attention like her relative, the butterfly.

We meet Goldfish in his tank, where he shows us where he came from and he explains their three month memory and unique ability to see in colour. Goldfish explains they are social animals who love much bigger spaces.

Insulted by the salt left in the garden, this slug begins to tell us how wrong we are about him. With his 25,000 teeth, he eats things like dead leaves, fungus, and dog poo all over the world.

Jellyfish shows us how they catch their prey and fend off predators using their stinging tentacles. Also, they can see their food after they eat it because of their see-through bodies.

Giant Clam explains what they eat that help them to grow from being very tiny clams to giant ones. They also have a very effective defence mechanism that helps them live for up to 100 years.

Ngarritj is a little white corella with a big attitude who flies freely around the Yolngu community of Galiwin'ku visiting everyone and speaking the local language.