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Both the terms “warm-blooded” and “cold-blooded” have fallen out of favour with scientists, because of the vagueness of the terms, and due to an increased understanding in this field. Body temperature types are not discrete categories. Each term may be replaced with one or more variants. Body temperature maintenance incorporates a wide range of different techniques that result in a body temperature continuum, with the traditional ideals of warm-blooded and cold-blooded being at opposite ends of the spectrum.
