Tortoises, thermogram

Tortoises, thermogram

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Credit: T-SERVICE/SCIENCE PHOTO LIBRARY

Caption: Tortoises. Thermogram of tortoises warming themselves on a warm surface. A tortoise is an example of an ectotherm. Ectotherms use their external environment to regulate their body temperature. A thermogram shows variation in temperature on the surface of an object, measured by the long-wave infrared radiation it emits. The temperature scale is colour-coded and runs from black (coldest, 17.5 degrees Celsius) through purple, pink and orange to light yellow (warmest, 37.2 degrees Celsius).

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Keywords: animal, biological, biology, coloured, ectotherm, ectothermy, false-coloured, fauna, heat, heating, infrared, infrared camera, ir, nature, reptile, reptilia, thermogram, thermography, tortoise, warming, wildlife, zoological, zoology

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