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Big Lizard

The cosmic adventures of astronauts Cosima and Dad on Proxima B, where they meet larger-than-life Big Lizard!

Series 1: 52. The Day We Left (7 mins)

Series 1: 1. The Day We Landed

Cosima and Dad crash-land on an unexplored planet, Proxima B, and meet Big Lizard!

7 mins

Series 1: 2. The Trouble with Trilobites

When a pack of trilobites overrun the ship, Big Lizard uses a new skill to lure them away.

Series 1: 3. How We Met Dunk

Cosima and Big Lizard find Dunk stranded on a beach and rush to help.

Series 1: 4. The Day We Met Ammon

Big Lizard takes Cosima and Dad on an underwater adventure to meet the tentacled Ammon.

Series 1: 5. Dad's Discovery

A rockfall traps Dad, Cosima and Big Lizard in a cave!

Series 1: 6. The Missing Volleyball

When Twig steals Cosima's volleyball, a chase leads Big Lizard and Cosima to her den!

Series 1: 7. How to Hoverboard

Cosima and Big Lizard's solar-powered hoverboards run out of battery at nightfall.

Series 1: 8. Hot and Cold

Volcanic smoke blocks all three suns, and Big Lizard becomes worryingly cold.

Series 1: 9. How to Work Together

Dad shares his explorer notebook with Cosima and Big Lizard.

Series 1: 10. When We Lost D.O.R.I.S.'s Brain

A creature takes D.O.R.I.S.'s brain, so Cosima and Big Lizard chase it into the forest...

Series 1: 11. Happy Campers

Cosima and Big Lizard camp out with a little crab.

Series 1: 12. All About Home

Cosima wants to tell Big Lizard all about her life on earth, no matter what the cost.

Series 1: 13. When Dad Sleepwalked

When Dad begins sleepwalking, Cosima and Big Lizard follow him to discover why.

Series 1: 14. How to Record Sound

Cosima and Big Lizard record some cosmic nature sounds for Dad.

Series 1: 15. The Triple Eclipse

Cosima and Big Lizard race against time to watch a cosmic triple eclipse!

Series 1: 16. Crystals!

Cosima is jealous of Big Lizard's beautiful crystal.

Series 1: 17. The Cocoon

Cosima and Big Lizard chase a cocoon-stealing dragonfly, armed with a vacuum cleaner!

Series 1: 18. Dad's Birthday

Cosima accuses Big Lizard of eating Dad's birthday cake.

Series 1: 19. Best Friends Forever

Cosima needs to reassure Big Lizard that he is definitely her best friend forever.

Series 1: 20. Magnetite

When D.O.R.I.S.’s satnav breaks, Big Lizard teaches Cosima how she to find her way.

Series 1: 21. The Problem Plant

Big Lizard steals Dad's special plant from the ship... and just in time!

Series 1: 22. The Sea Meteorite!

A meteorite lands in the sea, and Dad claims it for science. But the animals want it back.

Series 1: 23. Astronaut Health Check

Dad needs some training to his astronaut fitness test.

Series 1: 24. How to Fix a Tyre

When the buggy gets a flat tyre, Big Lizard stumbles across a natural solution.

Series 1: 25. Cosima in Charge

Cosima is left in charge for a day and accidentally hosts a massive party.

Series 1: 26. Happy Proximas!

Is it Christmas? It could be! Or maybe it's a unique and perfect 'Proximas'!

Series 1: 27. The Day Ammon Overcame Her Fear

Ammon overcomes her fear to rescue Cosima and Big Lizard from the rapids.

Series 1: 28. The Night of the Slug

Big Lizard and Cosima go on a night-time mission to rehome a persistent, sleepless slug!

Series 1: 29. The Shiny Fruit

Cosima and Big Lizard find some slippery fruit but struggle to carry it back to the ship.

Series 1: 30. Dad's Drone

In order to fly Dad's drone, Big Lizard tries to go a whole day without breaking anything.

Series 1: 31. A Medical Emergency

Whilst playing with a stethoscope, Cosima discovers a starfish with no heartbeat!

Series 1: 32. All Out of Marmalade

Big Lizard shows Cosima a plant that's growing huge Proximan oranges.

Series 1: 33. After the Storm

After a storm es, poor Rex is nowhere to be seen...

Series 1: 34. The River Picnic

The river creatures are behaving oddly, and Dad's tea might have something to do with it.

Series 1: 35. The Overfriendly Neighbours

Big Lizard and Cosima become unwilling house guests to some overfriendly creatures!

Series 1: 36. The Lesson

D.O.R.I.S. gives Cosima and Big Lizard a lesson on friction - just in time to help Dad!