Dino Club (S), Dino Club (S) 16

Harriet and Ayo learn all about the Quetzalcoatlus, before discovering how the Triceratops used the three mighty horns on their head.

Triceratops: With the help of a T-Rex, Harriet and Ayo discover how the Triceratops used the three mighty horns on their head. (S1, ep 2)

Velociraptor: Ayo uncovers some surprising facts about the famous feathered dinosaurs, while Harriet tries to discover why their name means "speedy thief". (S1, ep 3)

Harriet becomes a fossil detective and Ayo discovers how a large dinosaur called Allosaurus helped Rhamphorhynchus find food in the desert.

Harriet investigates exactly what made the massive meat-eating dinosaurs such great hunters. Meanwhile, Ayo takes a close-up look at their huge teeth.

Harriet gets a lift from some of the largest dinosaurs to ever walk planet Earth, while Ayo searches for facts about what these giant animals ate.

Ayo gets to meet a newly hatched, baby T-Rex. Meanwhile, Harriet explores what it would be like to have scary dinosaurs as your parents.

Ayo and Harriet meet one of the very first dinosaurs and discover what made it so unique and special.

Harriet finds out how super-slow dinosaurs like the Stegosaurus defended themselves, while Ayo investigates what their famous backplates were really for.

Ayo investigates why these dinosaurs were built like armoured tanks. Meanwhile, Harriet gets to see Ankylosaurus' mighty tail club in full swing.

Ayo tries to work out whether anything can annoy a giant dinosaur and Harriet discovers that the Muttaburrasaurus had a hidden musical talent.

Harriet attempts to get to the bottom of what exactly these hungry hunters ate. Meanwhile, a brave Ayo takes a peek inside their fearsome jaws.

Harriet and Ayo track down a mystery dinosaur with the largest claws of any animal ever. They have to be seen to be believed!

Harriet learns what made this early relative of T-Rex such a successful hunter. Meanwhile, Ayo meets some animals even older than the dinosaurs.

Ayo discovers how these little dinosaurs got a special nickname and Harriet helps a pair of Protceratops escape from a pack of hungry velociraptors.

Harriet gets to know these peculiar prehistoric creatures and how they stayed safe from hungry dinosaurs. Meanwhile, Ayo uncovers their secret weapon.

Harriet helps a baby pterosaur learn to fly, while Ayo discovers how the dino's special bones helped them rule the skies for over 150 million years.

Harriet investigates how a newt the size of a car could catch its food and Ayo sees how even dinosaurs were on the menu for these massive amphibians.

Ayo learns why these strange dinos had a head shaped like a bike helmet and Harriet is surprised about how the Prenocephale settled an argument.

Ayo helps some baby Saltasaurus find safety in the forest, while Harriet discovers what would happen if she grew as fast as Sauropod.