*[[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|Teeth]] are pink due to congenital inability to metabolise haemoglobin pigments. These pigments also produce [[photosensitivity]] in skin.
−
*This results in severe sunburn if animal exposed to normal levels of sunlight.
−
Discoloration of a single [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|tooth]] is more likely to be caused by pus in the [[Oral Cavity - Teeth & Gingiva - Anatomy & Physiology|tooth]].