The "feather" in the phrase "lighter than a feather" refers to the down on swans, also known as velvet. Since velvet is very soft and light, "lighter than a feather" is used to describe something very light and lightweight. It should be noted that "feather" itself is not an animal's hair, but just a metaphor.
animal tags: swan
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The Rottweiler is a large, strong, courageous working dog commonly used for guard, police and military duties. Its advantages and disadvantages are as follows:advantage:1. Loyalty: Rottweilers are usually loyal and close to their owners, showing extremely high loyalty.2. Confidence: Rottweilers are...
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