Season
- Season 0 1984-09-24
- Season 1 1983-10-30
- Season 2 1984-05-06
- Season 3 1984-11-04
- Season 4 1985-09-15
- Season 5 1986-10-05
- Season 6 1987-09-20
- Season 7 1988-09-18
- Season 8 1989-10-01
- Season 9 1991-01-06
- Season 10 1991-11-24
- Season 11 1993-01-03
- Season 12 1994-02-20
- Season 13 1994-11-27
- Season 14 1996-01-14
- Season 15 1996-10-06
- Season 16 1997-10-19
- Season 17 1998-10-11
- Season 18 1999-10-03
- Season 19 2000-10-08
- Season 20 2001-10-07
- Season 21 2002-10-13
- Season 22 2003-10-12
- Season 23 2004-10-14
- Season 24 2005-10-19
- Season 25 2006-10-18
- Season 26 2007-04-04
- Season 27 2008-01-04
- Season 28 2008-11-11
- Season 29 2009-10-28
- Season 30 2010-07-08
- Season 31 2011-08-01
- Season 32 2012-07-19
- Season 33 2013-05-17
- Season 34 2014-04-11
- Season 35 2015-02-24
- Season 36 2016-04-14
- Season 37 2017-03-20
- Season 38 2018-03-31
- Season 39 2019-04-07
Season 39 Episode
- Season 33 Leopards: 21st Century Cats
- Season 33 Giant Squid: Filming the Impossible
- Season 33 The Mating Game
- Season 33 Sri Lanka: Elephant Island
- Season 33 Meet the Monkeys
- Season 33 Orangutans: The Great Ape Escape
- Season 33 Meerkats: Secrets of an Animal Superstar
- Season 33 Walrus: Two Tonne Tusker
- Season 33 Killer Whales: Beneath the Surface
- Season 33 Vultures: Beauty in the Beast
Natural World - Season 33 Episode 8 Walrus: Two Tonne Tusker
7.10 60 minutes Sivuqaq is an 18 year old, larger than life captive pacific walrus. By now he should be a dad but things have not worked out. This is where reproduction scientist Holley Muraco comes in.
Holley is taking on the biggest challenge of her career - trying to help Sivuqaq become a parent. Yet walrus love is a mystery - even pandas have been bred more successfully than walruses. Holley hopes the clues lie in in exploring the lives of Sivuqaq's wild cousins and that she can find the answers by journeying to their breeding grounds in Northern Alaska.
