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Cats have a larger olfactory epithelium than humans (about 20 cm 2), meaning that cats have a more acute sense of smell. [18] In fact, cats have an estimated 45 to 200 million odor-sensitive cells in their noses, whereas humans only have 10 million odor-sensitive cells (known as " olfactory receptor neurons ", or "ORNs").
Cats have relatively few taste buds compared to humans (470 or so, compared to more than 9,000 on the human tongue). [85] Domestic and wild cats share a taste receptor gene mutation that keeps their sweet taste buds from binding to sugary molecules, leaving them with no ability to taste sweetness . [ 86 ]
Cats are among the world's most popular pets, and it's not hard to see why. They're diligent about keeping themselves clean, don't need to go outside for walks, and their enviable nap schedule ...
More than half of cats sleep between 12 and 18 hours a day, sometimes even more. Most cats sleep more as they age. [27] An alert cat at night, with pupils dilated and ears directed at a sound. Domestic cats seem to be comparatively flexible with regard to the times of day and night they are active or asleep. [28]
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According to In Defense of Animals, 100,000 cats are killed yearly to make cat soju in South Korea. Cats are not farmed for their meat in the country, so the trade involves ferals and strays. Nonetheless, the trade is mostly done underground, and the great majority of the population is not even aware that cat consumption exists in the country.
Cats don’t need constant attention. They can amuse themselves, take long naps, and generally prefer to do things on their own terms. We love the way they don’t rely on others for their security.
Cats exceeded dogs in number as pets in the United States in 1985 for the first time, in part because the development of cat litter in the mid-20th century eliminated the unpleasantly powerful smell of cat urine. [9] A 2007 Gallup poll reported that men and women in the United States of America were equally likely to own a cat. [10]