a blue whale is a dark blue color that looks like black it dose not have teeth.he killer whale (aka orca) is mostly black, with a white underside and sides, and white patches behind its eyes. (The pattern of coloring can actually be used to identify ind â¦ ividuals, as each has a different pattern.) It can grow to 5-8m (16-26ft), with the females being smaller than males.
Hives â also known as urticaria (ur-tih-KAR-e-uh) â is a skin reaction that causes itchy welts, which can range in size from small spots to large blotches several inches in diameter. Hives can be triggered by exposure to certain foods, medications or other substances.
The welts are harmless, but hives is typically a sign of a severe allergic reaction. General skin itching felt in your mouth, face or lips is also a sign of an allergic reaction. If youâve been diagnosed with eczema, an allergic reaction may cause a flare-up of this skin condition.