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Cats' hearing stops at 65 khz (kilohertz); humans' hearing stops at 20 khz.

ok und warum ist das so.

Cats that live together sometimes rub each others heads to show that they have no intention of fighting. Young cats do this more often, especially when they are excited.

ja wenn tiere zusammenleben dann sind die immer fast lieb

Heat occurs several times a year and can last anywhere from 3 to 15 days.

ok dann gehen die auch ab

If a cat is frightened, the hair stands up fairly evenly all over the body; when the cat is threatened or is ready to attack, the hair stands up only in a narrow band along the spine and tail.

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