List server
Season
- Season 1 1999-04-12
- Season 2 1970-01-01
- Season 3 1970-01-01
- Season 4 2002-01-01
- Season 5 2003-05-11
- Season 6 2004-04-12
- Season 7 2005-01-01
- Season 8 2006-01-01
- Season 9 2007-01-01
- Season 10 2008-01-01
- Season 11 2009-08-15
- Season 12 2010-02-23
- Season 13 2011-10-06
- Season 14 2012-08-17
- Season 15 2013-01-01
- Season 16 2014-03-30
- Season 17 2015-01-10
- Season 18 2016-01-09
- Season 19 2017-01-15
- Season 20 2018-01-14
- Season 21 2019-01-20
- Season 22 2020-01-18
- Season 23 2021-01-04
- Season 24 2022-01-23
- Season 25 2023-01-22
- Season 26 2024-01-21
Season 26 Episode
- Season 21 Orcas: Mysterious Gathering at Shiretoko
- Season 21 The Choshi River: Seeing the Unseeable
- Season 21 Tokyo's Lost Islands: Minami Iwo-to
- Season 21 Tokyo's Lost Islands: Sofugan
- Season 21 Rescue Triage: Learning from Disasters
- Season 21 Black Tsunami
- Season 21 Aurá: Last Survivor of An Unknown Tribe
- Season 21 Decommissioning Fukushima Daiichi: Tackling Nuclear Fuel Debris
- Season 21 Nobel Laureate Salaryman: Staying Ahead in Science and Technology
- Season 21 Yui and Bailey the Therapy Dog
- Season 21 New Roles in a Changing World: The Japan Self-Defense Forces
- Season 21 AI Robots: Friend or Foe?
- Season 21 US-China Tech War
- Season 21 From Despair to Recovery: The Era of Regenerative Medicine
- Season 21 Who Will Protect You? Global Warming Unleashes Torrential Rain
- Season 21 A Right to the End
- Season 21 Death of a Dream: Vietnamese Workers in Japan
- Season 21 Han-gure: An Emerging Threat to Society
- Season 21 Hyakumikai: A Rare Glimpse into Kyoto's Inner Parlors
- Season 21 A New Peace Memorial Museum: Passing on Hiroshima's Message
- Season 21 The People and Their Emperor
- Season 21 The Fall of Freedom - How a newspaper led Japan to war
- Season 21 The Great Metropolitan Blackout: Preparing for Crisis
- Season 21 Death Doulas for Businesses: End-of-Life Care for Dying Companies
- Season 21 The Words of Emperor Showa: Records of Imperial Audiences
- Season 21 The Supreme Imperial Collection: The Shosoin Treasures and the Birth of Japan
NHK Documentary - Season 21 Episode 1 Orcas: Mysterious Gathering at Shiretoko
0.00 57 minutes Orcas are huge and powerful. That's why they're called the Kings of the Sea. But not a lot is known about the habits of orcas in the waters off Hokkaido Prefecture's Shiretoko Peninsula. Here they gather in great numbers and engage in a puzzling display, arraying themselves in straight lines. Using drones, underwater sound equipment, satellite transmitters, and other tools, marine researchers and NHK undertake an in-depth investigation over 2 years. They learn that the nutrient-rich waters off the coast of Shiretoko make the area a magnet for orcas. And the key to their mysterious behavior might be found in their highly developed social intelligence and strong family ties.
