#animal physiology
- Adipochrome — A natural lipid or carotenoid pigment, fat-soluble, historically isolated from the adipose tissue of certain animals or insects, responsible for the yellow or orange coloration of fat stores. This biochemical structure serves as a metabolic indicator and reflects the accumulation of certain metabolites or exogenous compounds in fat cell vacuoles.
- Autotomy — A reflex biological self-defense mechanism found in certain animals (such as lizards, crayfish, or insects), consisting of the spontaneous amputation or detachment of a body segment or limb caught or attacked by a predator. This structural reflex phenomenon distracts the aggressor and allows the animal to escape, with the lost limb being subsequently partially or fully regenerated through autonomous cell division.