The text is for questions no 30-31

    Nowadays, cats are among the most popular pets, aside from dogs. The carnivorous mammals prey on smaller mammals
such as insects, mice, and birds. They like stalk and pounce on the their prey. Unlike dogs that have great stamina and can chose prey over long distances, cats are extremely fast, but can only cover short distances.
   One of the most interesting things about cats is that they are flexible and able to pass through any small space in which only their heads can fit. This is because their attached to the shoulders by clavicle bones that can move freely.
 Cats produce a variety of sounds such as mewing, hissing, purring, growling, grunting, clicking, chirping, squeaking, and trilling for communication. A mother cats is protective of her kittens and will warn anything that might harm them by hissing and showing her claws as well as making herself look bigger by arching her back and making her hair stand on end.

 

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