---
title: "Bears (Ursidae) | Evolutionary Clade | AnimalTracks.wiki"
description: "Massive plantigrade tanks combining bone-crushing strength with seasonal metabolic shutdowns. Explore 8 species in the Bears evolutionary lineage."
image: "https://animaltracks.wiki/icon-512.png"
---

# Bears (*Ursidae*)

> Massive plantigrade tanks combining bone-crushing strength with seasonal metabolic shutdowns.

Bears are heavily built carnivorans that walk flat on the soles of their feet like humans, granting unmatched leverage for digging, overturning boulders, and swiping prey. Their acute sense of smell exceeds bloodhounds, guiding them toward seasonal food bonanzas before entering deep winter torpor.

## Key Evolutionary Adaptations

- During multi-month winter dormancy, bears shut down digestion and recycle urea into muscle-building protein.
- Massive curved claws lack retractile sheaths, acting as heavy-duty excavators for roots, nests, and rocky dens.
- Keen nasal turbinates allow polar bears to smell ringed seals beneath a meter of solid ice up to 30 kilometers away.

## Member Species (8 Creatures)

- [American Black Bear](https://animaltracks.wiki/animals/american-black-bear/) (*Ursus americanus*)
  - **Superpower**: A sense of smell about seven times stronger than a bloodhound's
  - **Musical Match**: William Basinski (Glacial Ambient & Drone Soundscapes)
- [Giant Panda](https://animaltracks.wiki/animals/giant-panda/) (*Ailuropoda melanoleuca*)
  - **Superpower**: The strongest jaws of any bear, and a radial sesamoid wrist bone that works as a spare thumb for gripping bamboo.
  - **Musical Match**: Nujabes (Chillhop & Lo-Fi Beats)
- [Grizzly Bear](https://animaltracks.wiki/animals/grizzly-bear/) (*Ursus arctos horribilis*)
  - **Superpower**: Yellowstone grizzlies' claws, up to 5.9 inches long, are shaped for digging food out of the ground, and they can run 35 to 40 miles an hour.
  - **Musical Match**: Bombino (Saharan Desert Rock & Tuareg Shred)
- [Kodiak Bear](https://animaltracks.wiki/animals/kodiak-bear/) (*Ursus arctos middendorffi*)
  - **Superpower**: Loses 20 to 40% of its body mass during hibernation, without eating, drinking, urinating or defecating in the den.
  - **Musical Match**: Melvins (Sludge Metal & Abyssal Doom)
- [Polar Bear](https://animaltracks.wiki/animals/polar-bear/) (*Ursus maritimus*)
  - **Superpower**: Jet-black skin under hollow, clear guard hairs, with up to 10 centimeters (4 inches) of fat beneath it.
  - **Musical Match**: Chelsea Wolfe (Blackgaze & Atmospheric Post-Metal)
- [Sloth Bear](https://animaltracks.wiki/animals/sloth-bear/) (*Melursus ursinus*)
  - **Superpower**: Vacuum-cleaner feeding: a gap where its top two front teeth should be lets it suck up termites, it can close its nostrils while it feeds, and the slurping can be heard up to 100 meters away.
  - **Musical Match**: Carpenter Brut (80s Retrowave & Synthwave)
- [Spectacled Bear](https://animaltracks.wiki/animals/spectacled-bear/) (*Tremarctos ornatus*)
  - **Superpower**: Builds platforms in trees for eating and sleeping
  - **Musical Match**: KT Tunstall (Garage Blues & Swamp Rock)
- [Sun Bear](https://animaltracks.wiki/animals/sun-bear/) (*Helarctos malayanus*)
  - **Superpower**: Although it is the smallest bear in the world, it has the longest tongue.
  - **Musical Match**: Abigail Washburn (Pastoral Folk & Progressive Bluegrass)

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