Season 46

1. Tarantula: Australia's King of Spiders

2005-08-31

The hair-raising journey to discover the secret lives of these ancient crawlers. They have been roaming our planet for more than 350 million years and survived to become the giants of the spider kingdom. And they have a reputation to match – their name alone provokes fear and loathing.

2. Nature Bites Back: The Case of the Sea Otter

2005-09-14

3. Earth Energy

2005-10-19

4. Change of Heart

2005-10-26

5. The Secret Life of Babies

2005-11-02

6. Tsepong: A Clinic Called Hope

2005-11-09

7. Port Hope: A Question of Power

2005-11-16

8. Everyday Einstein

2006-06-18

Everyday Einstein provides a fast-paced and jazzy look at the extraordinary impact Einstein continues to have on our daily lives.

9. Homo Sapiens: The Rise of Our Species (Pt.1)

2006-06-25

Homo Sapiens: The Rise of Our Species will introduce you to the ultimate family tree. This story is the story of each one of us. It's the story of the birth of humanity and civilization.

10. Homo Sapiens: The Rise of Our Species (Pt. 2)

2006-07-02

Homo Sapiens deftly employs both docu-drama and interviews with key scientists to illuminate the remarkable story of the origins and development of our species.

11. Ghosts of Futures Past: Tom Berger in the North

2006-07-09

12. Blue Buddha: Lost secrets of Tibetan Medicine

2006-07-16

A look at the rising interest in the ancient healing arts of traditional Tibetan medicine.

13. Beetalker: The Secret World of Bees

2006-07-23

Examining how bees communicate.

14. Cuba: The Accidental Revolution (Pt. 1)

2006-07-30

Examines Cuba's response to the food crisis created by the collapse of the Soviet Bloc in 1989.

15. Cuba: The Accidental Revolution (Pt. 2)

2006-08-06

In spite of the economic crisis and US embargo, the Cuban health system is an outstanding success story around the world.

16. When Less Is More

2006-08-13

17. Stephen Lewis: The Man Who Couldn't Sleep

2006-12-06

18. Wild Caribbean: Hurricane Hell

2007-06-10

Every year the Caribbean paradise is turned into a hurricane hell. From the beginning of June until the end of November its hurricane season in the islands. With winds of over 150 mph, 5 metre storm surges and torrential rain, the destruction caused by hurricanes makes them one of the most feared forces of nature.

19. Build Green

2007-06-17

In a refreshing hour, Build Green advises making the sun, the wind, and the rain – along with dirt, straw, and sewage – your friends. By building a house using innovative practices and materials, you'll be doing the earth a favour too.

20. Wild Caribbean: Reefs and Wrecks

2007-06-24

The clear blue waters that surround the Caribbean islands are home to some of the world's most stunning underwater treasures. Coral reefs form beautiful underwater gardens visited by angels, horse eye jacks, blue tangs and stingrays.

21. Wild Caribbean: Treasure Island

2007-07-22

Take the island hop of your life. Discover the rich variety of islands that are the Caribbean, and what forces have shaped this violent paradise.

22. Wild Caribbean: Secret Shores

2007-07-29

The Caribbean is not just the islands. We explore the least known Caribbean, that area beyond the Sea. A journey along the greatest Caribbean shoreline of all, that of Central America.

23. Cuttlefish – The Brainy Bunch

2007-08-12

Imagine an alien with three hearts, blue blood and a doughnut shaped brain. In an instant it could become invisible, or switch on electrifying light shows. Then imagine this bizarre creature was real, and somehow connected to us.

24. Mystery of the Giant Sloths Cave

2007-08-19

Today's sloths rank highly among the most surprising creatures of the animal kingdom: living suspended to the Amazon rainforest's trees, they move about extremely slowly, as if from a world where time flows differently.

25. Geologic Journey: The Great Lakes

2007-09-09

26. Geologic Journey: The Rockies

2007-09-16

27. Geologic Journey: The Canadian Shield

2007-09-23

28. Geologic Journey: The Appalachians

2007-09-30

29. Geologic Journey: The Atlantic Coast

2007-10-07