Season
- Season 0 1999-07-13
- Season 1 1974-03-03
- Season 2 1974-11-03
- Season 3 1976-01-04
- Season 4 1977-01-05
- Season 5 1978-01-04
- Season 6 1979-01-04
- Season 7 1980-01-15
- Season 8 1981-01-06
- Season 9 1982-01-10
- Season 10 1983-01-18
- Season 11 1984-01-17
- Season 12 1985-01-15
- Season 13 1986-01-21
- Season 14 1987-01-20
- Season 15 1988-01-19
- Season 16 1989-01-17
- Season 17 1990-01-09
- Season 18 1991-01-08
- Season 19 1992-01-14
- Season 20 1993-01-05
- Season 21 1994-01-18
- Season 22 1995-01-08
- Season 23 1995-10-10
- Season 24 1996-10-01
- Season 25 1997-10-07
- Season 26 1998-10-06
- Season 27 1999-10-05
- Season 28 2000-10-24
- Season 29 2001-10-02
- Season 30 2002-09-03
- Season 31 2003-09-30
- Season 32 2004-09-28
- Season 33 2005-09-20
- Season 34 2006-09-05
- Season 35 2007-10-09
- Season 36 2008-10-07
- Season 37 2009-10-06
- Season 38 2010-10-19
- Season 39 2011-09-07
- Season 40 2012-10-10
- Season 41 2013-09-11
- Season 42 2014-09-10
- Season 43 2015-09-16
- Season 44 2016-09-07
- Season 45 2018-01-10
- Season 46 2019-01-02
- Season 47 2020-02-05
- Season 48 2021-01-14
- Season 49 2022-02-02
- Season 50 2023-02-01
- Season 51 2024-01-31
- Season 52 2025-01-22
- Season 53 2026-01-21
Season 53 Episode
- Season 38 Building the Great Cathedrals
- Season 38 Emergency Mine Rescue
- Season 38 Trapped in an Elevator
- Season 38 Dogs Decoded
- Season 38 Secrets of Stonehenge
- Season 38 Quest for Solomon's Mines
- Season 38 Secrets Beneath the Ice
- Season 38 Deadliest Earthquakes
- Season 38 Making Stuff: Stronger
- Season 38 Making Stuff: Smaller
- Season 38 Making Stuff: Cleaner
- Season 38 Making Stuff: Smarter
- Season 38 Smartest Machine on Earth
- Season 38 Crash of Flight 447
- Season 38 Venom: Nature's Killer
- Season 38 Japan's Killer Quake
- Season 38 Power Surge
- Season 38 How Smart Are Animals?
NOVA - Season 38 Episode 4 Dogs Decoded
7.00 55 minutes "Dogs Decoded" reveals the science behind the remarkable bond between humans and their dogs and investigates new discoveries in genetics that are illuminating the origin of dogs—with surprising implications for the evolution of human culture. Other research is proving what dog lovers have suspected all along: Dogs have an uncanny ability to read and respond to human emotions. Humans, in turn, respond to dogs with the same hormone responsible for bonding mothers to their babies. How did this incredible relationship between humans and dogs come to be? And how can dogs, so closely related to fearsome wild wolves, behave so differently?
