Remodeled Polarbears
Note: OptiFine installation is required for the resource pack to work correctly. Go to Options → Video Settings → Quality → Custom Entity Models: ON and Random Entities: ON.
Key Features
This resource pack completely redesigns the appearance of polar bears in Minecraft. Instead of uniform models, you'll get eight unique bear variations divided into two main groups.
Bear Variety
Arctic Bears - four different polar bear options with white coloration that spawn in snowy biomes.
Forest Bears - four variants of brown and black bears with darker fur that inhabit temperate climate zones.
Important Information
Each bear type naturally appears in corresponding biomes, creating a more realistic and diverse game ecosystem.

Randomization and Compatibility
For the full effect, it's recommended to enable the random entities option in OptiFine settings. This ensures random appearance of different bear variants in appropriate biomes, making the game world more vibrant and unpredictable.
The author is considering creating similar resource packs for other mobs and plans to add additional variations to this pack.