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Season guide

Natural World: Season 20

16 episodes Premiered Oct 7, 2001 Updated Sep 26, 2026
Previously on Natural World

Season 20 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of Natural World Season 19.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 20 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 20 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 20: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

31%
69%
Mytharc (5): Crucial lore & season climaxes
Core (11): Character development & subplots
Side Quest (0): Standalone / filler
S20·E1 Mytharc

The Lost Elephants of Timbuktu

Oct 7, 2001

David Attenborough narrates this documentary following young research student Anne Orlando as she sets out on an unforgettable adventure, hoping to solve the mysteries surrounding

S20·E2 Core

Yellowstone: America's Sacred Wilderness

Oct 14, 2001

Park ranger Paul Schullery presents a personal account of life in America's Yellowstone Park. After wolves were reintroduced to the park, he watched the natural order establish its

S20·E3 Core

Wild Nights

Oct 21, 2001

Simon King attempts to win the trust of shy and elusive night-time animals including badgers, foxes and owls, in an attempt to reveal the natural world on our doorstep.

S20·E4 Core

Hotel Heliconia

Nov 4, 2001

The Heliconia plant provides food and shelter for a wide variety of jungle creatures and also produces some of the most stunning flowers on earth

S20·E5 Core

Night Stalkers

Nov 18, 2001

This documentary introduces us to the variety of bats found in the rainforests of Central America. Fringe-lipped, Fishing, fruit and the notorious vampire bat are amongst the line

S20·E6 Core

Treasure Islands

Nov 25, 2001

Documentary on the wildlife of the Channel Islands.

S20·E7 Core

Leopard Hunters

Dec 2, 2001

Wildlife documentary featuring the Asiatic leopards of Yala in the south of Sri Lanka. This unique and revealing film shows the secretive spotted cats fighting crocodiles and bears

S20·E8 Core

War Wrecks of the Coral Sea

Dec 9, 2001

Exploring shipwrecks in the Solomon Islands and Truk Lagoon that have been transformed into spectacular living reefs following the destruction of World War Two. Featuring the testi

S20·E9 Core

The Alps

Dec 16, 2001

Documentary focusing on the wildlife of the European Alps, a spectacular wilderness area in the heart of the world's most densely settled continent. Carved by ice-age glaciers and

S20·E10 Core

A Wild Dog's Story

Jan 20, 2002

Documentary following Newky, an African wild dog, over five years. Told through the personal recollections of wild-dog researcher Dr 'Tico' McNutt and set against the spectacular w

S20·E12 Core

Killer Whales of Monterey Bay

Jan 27, 2002

Andrew Sachs narrates a programme focusing on the killer whales of Monterey Bay, fierce and nomadic hunters capable of taking down prey as big as a grey whale. As well as capturing

S20·E13 Mytharc

The Canine Conspiracy

Feb 24, 2002

The programme follows a puppy through the first year of its life and its willful destruction of the owner's property : which nearly led to the rebellious hound's expulsion from the

S20·E14 Core

The Cat Connection

Mar 3, 2002

The secret life of the cat, examining the Jekyll and Hyde nature of the feline, which is a ruthless predator in the wild. Filmed in several countries, the programme explains what p

S20·E15 Mytharc

Top Bat

Mar 10, 2002

Rebecca Hosking presents an insight into the world of vampire bats, observing them in their natural habitat. She reveals that despite their dark reputation, they possess amazing ab

S20·E16 Mytharc

Amazon: Super River

Mar 17, 2002

A look at the biggest river system on the planet, the Amazon, which rises as a small stream high in the Andes and ends over 6,000 miles away in the Atlantic Ocean. Holding a fifth

S20·E17 Mytharc

Rhinos: Built to Last?

Mar 24, 2002

Robert Lindsay narrates a documentary which focuses on the plight of the rhino, a notoriously feisty and well-armoured animal that is both revered and feared by humans. Hunted for

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