Lint/Dust bunnies

Often found in homes, under furniture, in clothing fibers, or any indoor environment where dust and fibers accumulate.

N/A (Not a biological entity); composed of shed human and pet hair, textile fibers, dead skin cells, pollen, and other fine debris.

Accumulates in low-airflow areas due to static electricity and natural aggregation of various particulate matter.

Generally harmless, though large accumulations can exacerbate allergies in sensitive individuals. No known benefits.