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Breeding

First Saber-Toothed Cat Mummy Found in Siberia Was a 37,000-Year-Old Homotherium Cub

A partial but remarkably preserved Homotherium latidens cub from Yakutia dates to 35,471–37,019 calendar years BP and preserves fur, whiskers, skin and mummified flesh.

By Animalso Team 4 min read
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Yes—but it was not a saber-toothed tiger. A 2020 discovery in Yakutia, Russia, is the first described Asian mummy of Homotherium latidens, an extinct scimitar-toothed cat. Radiocarbon dating of its wool gives 31,808 ± 367 years BP; calibration places it at 35,471–37,019 calendar years BP, which is why headlines round its age to 37,000 years.

The preservation is exceptional rather than complete: the specimen retains the head, chest-front portion of the body, skin, mummified flesh, fur and whiskers, but not an intact whole carcass.

Was a saber-toothed tiger really found frozen in Siberia?

No. The animal is Homotherium latidens, commonly called a scimitar-toothed cat. It is neither a modern tiger nor the American saber-toothed cat Smilodon. The specimen was a juvenile felid recovered from Upper Pleistocene permafrost in the Republic of Sakha (Yakutia), northeastern Russia.

Researchers reported the mummy in 2024. The find was made in 2020 near the Badyarikha River in the Indigirka River basin and is held by the Department for the Study of Mammoth Fauna in Yakutsk. A 2025 site study identifies the locality as Badyarikhskoe, near the Meten oxbow lake.

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How old is the saber-toothed cat mummy?

Measurement Result What it means
Material dated Wool Radiocarbon dating performed by CCU AMS NSU-NSC and the study authors
Radiocarbon age 31,808 ± 367 years BP The uncalibrated radiocarbon result reported in the 2024 study
Calibrated calendar age 35,471–37,019 calendar years BP (95.4% probability) The statistical calendar-age range; “37,000 years” is a rounded reference to its upper end

“BP” means before present, conventionally measured from 1950. The calibrated interval is a range, not a claim that the cub died on one precisely known date.

Is the whole cat preserved, including fur and whiskers?

No. The mummy is a partial body. It includes the head and anterior body to about the back edge of the chest. Incomplete pelvic bones remain articulated with the femur and shin bones, but the published specimen is not a complete, intact carcass.

Soft tissue and external features that survived

  • Skin and mummified flesh
  • Short, thick, soft dark-brown fur, generally about 20–30 millimetres long
  • Longer fur on the back and neck
  • Two rows of facial vibrissae (whiskers), with many individual hairs broken
  • A strongly muscular neck
  • Elongated forelimbs
  • Small, low-set ears
  • A broad front paw consistent with movement on snow and cold ground

These details matter because ordinary fossils usually preserve hard parts. The mummy allows researchers to inspect the animal’s visible coat, muzzle, ears, paws and muscle distribution directly.

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What species was the Siberian saber-toothed cat?

The identification as Homotherium latidens rests on mandibular and dental morphology. The genus had blade-like, relatively short saber canines compared with the long, rounder canines popularly associated with Smilodon. Because this individual was a very young cub, its adult saber canines had not yet developed.

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The 2024 report describes the specimen as the first described Asian find of this extinct cat and the first opportunity to study its external appearance from a mummy. It has no close living equivalent, so comparisons with modern big cats must be treated as limited analogies rather than direct matches.

What did Homotherium look like?

The preserved anatomy depicts a compact, cold-adapted cub with a dark-brown coat and a heavily built neck. The forelimbs were long, and the front paw was broad. Low ears and dense body hair would have reduced exposed surface area in a cold environment, although the hair study found the cub’s short, fairly uniform and tangled hair had weak heat-insulating properties.

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That same microstructural analysis found the hairs had excellent mechanical strength. In other words, the coat appears better suited to resisting wear and tangling than to providing the maximum insulation of a modern arctic mammal. Hair was longer over the back and neck than elsewhere on the preserved body.

How old was the cub when it died?

Dental eruption places the animal in the same developmental age group as a roughly three-week-old lion cub. The hair-microstructure study likewise identifies it as about three weeks old. This age explains why the specimen does not show the fully developed saber canines that made adult Homotherium distinctive.

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What environment did it live in?

Sediment collected from the Badyarikhskoe locality was examined for pollen, spores, plant detritus, fungal spores, algae remains, phytoliths and sponge spicules. The 2025 reconstruction identifies a floodplain landscape containing mature larch forest and moist sedge–grass–forb meadows.

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This was not simply an open, treeless steppe. The combination indicates a patchwork of woodland and meadow habitats on a Pleistocene floodplain, offering a more specific ecological setting for the cub than bones alone could provide.

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Why this mummy is scientifically important

It adds anatomy that fossils cannot show

Mandibles and teeth established the taxon, but the mummy reveals the muzzle, mouth opening, whisker arrangement, ears, coat, paws and soft-tissue proportions. Those observations help test reconstructions based only on skeletons.

It documents an Asian occurrence

The 2024 publication calls it the first described Asian mummy of H. latidens. That expands the directly observed record of a genus known from Ice Age Eurasia and other regions.

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It connects an animal to a dated habitat

The wool date supplies a chronological anchor, while the associated sediment study reconstructs the vegetation and local environment. Together, they link the individual to a particular late-Pleistocene floodplain rather than treating it as an isolated skeleton.

What the discovery does not show

  • It is not a complete frozen body.
  • It is not Smilodon and not a modern tiger.
  • The published studies do not report a complete genome.
  • They provide no cloning experiment, de-extinction program or revival plan.
  • “Perfectly preserved” is a headline-friendly phrase, not a literal description of every part of the animal.

The evidence supports an unusually well-preserved partial mummy of a three-week-old Homotherium latidens cub, dated to roughly 35,500–37,000 calendar years ago and associated with a larch-forest and meadow floodplain.

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