What barnyard animals don't sweat?

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Original photo by ChristiLaLiberte/ iStock Pigs don't sweat. Although not the most glamorous of methods, sweating is a biologically ingenious way to keep cool. Our sweat glands employ energy — in this case, heat — to evaporate water off our skin, which in turn cools us down. Humans, along with some monkeys and all of the great apes, use a similar cooling technique, but sweating isn't as ubiquitous throughout the animal kingdom as you might expect. For example, pigs don't sweat — well, not really.  Pigs do have some sweat glands, but they're insufficient to play a significant role in regulating the creatures' body temperatures. Instead, some of a pig's internal body temperature is regulated by a thyroid-produced hormone, but the most fast-acting method for keeping cool is simply wallowing in mud. When the mud evaporates, it takes some heat with it, just as when human sweat evaporates. Pigs will also seek shaded areas, lie flat on cool ground, or even pant similarly to dogs. The fact that pigs don't sweat (a lot) has created an inaccurate idea that eating a pig is unhealthy because they can't release toxins through sweat — but that's just a myth.    Sweat doesn't smell. Sweat doesn't smell.

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Hibernating during the summer to keep cool is called __. Hibernating during the summer to keep cool is called __. Numbers Don't Lie Types of sweat glands in the human body 3 Pages in Dick King-Smith's "The Sheep-Pig," the basis for the 1995 film "Babe" 118 Average life span (in years) of a Yorkshire pig 8 Year of Porky Pig's debut in the animated short "I Haven't Got a Hat" 1935 The phrase "sweating like a pig" comes from iron — not the animal. During the traditional iron smelting process, hot iron was poured into molds lined with sand and arranged with one runner feeding into many rows. The molds were said to resemble a row of piglets suckling a sow, which is how crude iron became known by its common name, "pig iron." The phrase "sweating like a pig" comes from the fact that as the iron cools, water vapor condenses on its surface — a signal that it's now safe to handle. Although this phrase is likely a 19th-century European invention, the Chinese first used pig iron thousands of years ago, and it's still used today as a raw material for iron steelmaking.   You might also like 6 Sturdy Facts About Camels Thank you for supporting our advertisers. They help keep Interesting Facts free!

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