heat

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Shivering is one mechanism by which heat is produced in the body. Heat production is called thermogenesis. Another mechanism is through nonshivering thermogenesis regulated by brown fat (i.e. adipose). This second type of heating mechanism kicks in when we need extra heat production such as a postnatal infant, someone developing a fever, an animal arousing…

Elephant “Hair Conditioning”

Researchers think that the hair on an elephant might actually function to keep the animals cool as opposed to keeping them warm as it does for other mammals. Living in hot climates (as high as 122 degrees F) since the last ice age means the animals have had to evolve ways to tolerate the heat.…