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Sheep Wool Regulates Humidity
Sheep wool has the function of regulating temperature. A cross-section of wool reveals its circul...

Owls Are Silent Night Hunters
Unlike most other birds, the owl is nocturnal. It hides in the darkness of night until it silentl...

Quiet of Snowy Mornings
Accumulated snow has the ability to dampen sound. If you look at snow under a microscope, you’ll ...