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Walrus, thermogram

Walrus, thermogram

Z936/0291

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Credit

T-SERVICE / SCIENCE PHOTO LIBRARY T-SERVICE / SCIENCE PHOTO LIBRARY

Caption

Walrus. Thermogram of a walrus (Odobenus rosmarus). 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 purple (0.1 degrees Celsius, coldest) through indigo, blue, green and yellow to red (warmest, 32 degrees Celsius). This image illustrates how the blubber covering most of the head of a walrus insulates it from the cold. Where the blubber is absent, (the eyes and the nostrils), heat loss is greatest.

Release details

Model release not required. Property release not required.

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