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- Season 0 1970-01-01
- Season 1 1982-10-10
- Season 2 1983-10-09
- Season 3 1984-09-30
- Season 4 1985-10-20
- Season 5 1986-10-19
- Season 6 1987-09-20
- Season 7 1988-10-09
- Season 8 1989-10-08
- Season 9 1990-09-30
- Season 10 1991-09-28
- Season 11 1992-10-05
- Season 12 1993-10-03
- Season 13 1994-10-02
- Season 14 1995-10-08
- Season 15 1996-10-13
- Season 16 1997-10-12
- Season 17 1998-10-11
- Season 18 1999-10-24
- Season 19 2000-10-22
- Season 20 2001-09-09
- Season 21 2002-10-13
- Season 22 2003-10-19
- Season 23 2004-11-07
- Season 24 2005-11-06
- Season 25 2006-10-24
- Season 26 2007-10-28
- Season 27 2008-10-26
- Season 28 2009-10-25
- Season 29 2010-09-26
- Season 30 2011-10-19
- Season 31 2012-10-10
- Season 32 2013-09-04
- Season 33 2014-09-24
- Season 34 2015-09-23
- Season 35 2016-10-12
- Season 36 2017-10-04
- Season 37 2018-10-24
- Season 38 2019-10-02
- Season 39 2020-10-21
- Season 40 2021-10-20
- Season 41 2022-10-19
- Season 42 2023-10-18
- Season 43 2024-10-23
Season 43 Episode
- Season 18 Antarctica: The End of the Earth: Katabatic
- Season 18 Antarctica: The End of the Earth: Iceberg
- Season 18 Horses
- Season 18 Sled Dogs: An Alaskan Epic
- Season 18 Wisdom of the Wild
- Season 18 Inside the Animal Mind Part One: Are Animals Intelligent?
- Season 18 Humpback Whales
- Season 18 Inside the Animal Mind Part Two: Do Animals Have Emotions?
- Season 18 Inside the Animal Mind Part Three: Animal Consciousness
- Season 18 Cheetahs in a Hot Spot
- Season 18 Showdown at Grizzly River
- Season 18 Jackals of the African Crater
- Season 18 Obsession with Orchids
- Season 18 Earth Navigators
- Season 18 The Body Changers
- Season 18 Springs Eternal: Florida's Fountain of Youth
- Season 18 The Nature of Sex
- Season 18 Animal Attractions: Amazing Tales from the San Diego Zoo
Nature - Season 18 Episode 17 The Nature of Sex
8.10 53 minutes From the sea horse that mates in an hypnotic underwater ballet to the rodent who copulates until he literally drops dead, THE NATURE OF SEX spans the globe to illustrate how an astonishing diversity of life forms find their mates and conceive, raise, and protect their offspring.
