Why does my rat vibrate?
But it also means that rats must use their teeth continually to keep them from growing too long, hence the tooth grinding.
Sometimes, a rat's eyes may vibrate rapidly in and out of the eye socket, a phenomenon called eye boggling.
Rats may "wag" or writhe their tails on the ground.
Dogs also lick because they like the taste of an owner's salty skin and out of habit.
Mostly, with domestic Dogs, it's a sign of affection.
Licking releases pleasurable endorphins which gives Dogs a feeling of comfort and pleasure — like the feeling people get when they are biting their nails — it relieves stress.
According to this report, the total first-year cost of owning a dog is $1,270 and for a cat it's $1,070.
As you can see, having a pet can cost you over $1,000 in the first year, and well over $500 each additional year.
Depending on the food you buy and sudden medical expenses, the costs could be much higher.
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