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- Season 0 2008-11-27
- Season 1 1960-11-06
- Season 2 1970-01-01
- Season 3 1970-01-01
- Season 4 1970-01-01
- Season 5 1970-01-01
- Season 6 1970-01-01
- Season 7 1970-01-01
- Season 8 1970-01-01
- Season 9 1970-01-01
- Season 10 1970-01-01
- Season 11 1970-01-01
- Season 12 1970-01-01
- Season 13 1970-01-01
- Season 14 1970-01-01
- Season 15 1970-01-01
- Season 16 1970-01-01
- Season 17 1970-01-01
- Season 18 1970-01-01
- Season 19 1970-01-01
- Season 20 1970-01-01
- Season 21 1970-01-01
- Season 22 1970-01-01
- Season 23 1970-01-01
- Season 24 1970-01-01
- Season 25 1970-01-01
- Season 26 1970-01-01
- Season 27 1970-01-01
- Season 28 1970-01-01
- Season 29 1970-01-01
- Season 30 1970-01-01
- Season 31 1970-01-01
- Season 33 1970-01-01
- Season 34 1970-01-01
- Season 35 1970-01-01
- Season 36 1970-01-01
- Season 37 1970-01-01
- Season 38 1970-01-01
- Season 39 1998-10-08
- Season 40 1999-10-04
- Season 41 2000-10-05
- Season 42 2001-10-02
- Season 43 2002-10-17
- Season 44 2003-10-22
- Season 45 2004-09-16
- Season 46 2005-08-31
- Season 47 2007-10-11
- Season 48 2008-10-16
- Season 49 2009-10-11
- Season 50 2010-09-23
- Season 51 2011-10-13
- Season 52 2012-10-18
- Season 53 2013-10-03
- Season 54 2014-10-09
- Season 55 2015-10-15
- Season 56 2016-10-06
- Season 57 2017-09-24
- Season 58 2018-09-23
- Season 59 2019-09-20
- Season 60 2020-11-06
- Season 61 2021-11-05
- Season 62 2023-01-06
- Season 63 2024-01-04
Season 63 Episode
- Season 46 Tarantula: Australia's King of Spiders
- Season 46 Nature Bites Back: The Case of the Sea Otter
- Season 46 Earth Energy
- Season 46 Change of Heart
- Season 46 The Secret Life of Babies
- Season 46 Tsepong: A Clinic Called Hope
- Season 46 Port Hope: A Question of Power
- Season 46 Everyday Einstein
- Season 46 Homo Sapiens: The Rise of Our Species (Pt.1)
- Season 46 Homo Sapiens: The Rise of Our Species (Pt. 2)
- Season 46 Ghosts of Futures Past: Tom Berger in the North
- Season 46 Blue Buddha: Lost secrets of Tibetan Medicine
- Season 46 Beetalker: The Secret World of Bees
- Season 46 Cuba: The Accidental Revolution (Pt. 1)
- Season 46 Cuba: The Accidental Revolution (Pt. 2)
- Season 46 When Less Is More
- Season 46 Stephen Lewis: The Man Who Couldn't Sleep
- Season 46 Wild Caribbean: Hurricane Hell
- Season 46 Build Green
- Season 46 Wild Caribbean: Reefs and Wrecks
- Season 46 Wild Caribbean: Treasure Island
- Season 46 Wild Caribbean: Secret Shores
- Season 46 Cuttlefish – The Brainy Bunch
- Season 46 Mystery of the Giant Sloths Cave
- Season 46 Geologic Journey: The Great Lakes
- Season 46 Geologic Journey: The Rockies
- Season 46 Geologic Journey: The Canadian Shield
- Season 46 Geologic Journey: The Appalachians
- Season 46 Geologic Journey: The Atlantic Coast
The Nature of Things - Season 46 Episode 23 Cuttlefish – The Brainy Bunch
7.50 48 minutes 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.
