11:15in productionCh. 1 · What it is/ 11:15 · ceiling 15 min
Mammals
Siberian tiger
The Siberian tiger is not a relic—it’s a genetic echo of a vanished corridor, surviving only where pine forests meet snow.
The Siberian tiger is Panthera tigris tigris—not a distinct species—but the most cold-adapted population, confined to Korean pine forests in the Sikhote-Alin mountains. Its numbers have risen steadily since 2005, but its mitochondrial DNA shows near-zero diversity: one haplotype dominates all wild individuals. Genetic work ties it directly to the extinct Caspian tiger, revealing an unexpected east-west-east dispersal route from eastern China through Central Asia and back into the Russian Far East. It survives where few large predators can—yet its genetic uniformity makes it vulnerable to disease and environmental change.
It is not a separate species—it is Panthera tigris tigris, native to Northeast China, the Russian Far East, and possibly North Korea.
2:21
How many there are
Its population rose from 331–393 in 2005 to 562 in 2015 and 756 in 2022—all within the Russian Far East.
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Where its genes came from
Genetic work with museum Caspian tigers shows its ancestors came from eastern China, crossed Central Asia, then turned east again into Siberia.
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What its DNA says
One mitochondrial haplotype dominates wild maternal lines—proof of a recent, human-driven genetic crash.
6:11
Where it holds on
Its stronghold is the Sikhote-Alin mountain region—where every verified count since 2005 has been anchored.
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Where it lives
It inhabits Korean pine forests inside a temperate broadleaf/mixed forest and taiga biome—and nothing else.
Worth your time?
Yes. See the whole thing.
4.5/ 5
What works
cold adaptation via thick fur
population recovery in Sikhote-Alin
genetic link to Caspian tiger
What does not
reproduce with high genetic variation
occupy habitats outside Korean pine forest and taiga
occur outside Northeast China, the Russian Far East, or possibly North Korea
See it if
field biologists
conservation practitioners
ecotourists prepared for remote travel
Skip it if
birdwatchers
marine ecologists
urban naturalists
The written brief1 min read
What the species is and where it came from
It is Panthera tigris tigris, native to Northeast China, the Russian Far East, and possibly North Korea—with its current stronghold in the Sikhote-Alin mountains.
How it works, in terms someone would actually use
It lives in Korean pine forests across temperate broadleaf/mixed forest and taiga, from Northeast China through the Russian Far East to possibly North Korea.
What it gets right
It gets cold adaptation right: thick winter fur lets it thrive where few other big cats can survive year-round.
What it does not
It does not recover genetic diversity. A single mitochondrial haplotype dominates all wild individuals—a sign of severe, recent bottlenecking.
What it changed
It changed how we trace tiger dispersal: its lineage proves tigers moved west-to-east—from eastern China through Central Asia—then back east into the Russian Far East.
Who it is for, and who it is not
It is for field biologists tracking range shifts, conservationists assessing genetic rescue options, and ecotourists willing to go deep into Sikhote-Alin.
Is it worth your time
Yes—if you want to see a large cat shaped by extreme cold and recent genetic collapse, and whose survival hinges on one mountain range.