How long does a cat have a memory?
Spiders often wonder if their cats have memory. For example, Mingming warned her not to scratch sofa many times, but she can't remember it. Do cats really have bad memories? not at all.

(A cat's memory may be beyond your imagination)
There is such a real story. A foreign pet shop adopted a homeless ginger cat, who at that time was 13 years old. One day, three years later, a father and daughter accidentally stumbled into this pet hospital and found that this ginger cat looked too much like a cat that got lost at home a long time ago! When ginger cat saw two of them, he excitedly rushed towards them. To confirm whether it was original cat of house, father and daughter brought orange cat's younger brother in afternoon. Unexpectedly, two cats recognized each other moment they saw each other, and finally family was reunited. with a happy ending.

(The cat, lost for many years, still remembers its former owner)
Is story above a little unexpected? In our opinion, we might think that only dogs can always remember their previous owners, but we didn't expect cats to do same. In my previous article “Cats are smarter than you think! “I once said that cats have a very high IQ. Although cats have small brains, accounting for only 0.9% of their body weight, their cerebral cortex is very complex. The information processing part contains twice as many nerve cells as dogs. That's why cats have a good memory.

(IQ of cats is higher than we thought)
According to scientific studies, cats' short-term memory can last 16 hours, while dogs' short-term memory can last only 5 minutes. For example, they will remember exactly where rice bowl is and where toilet is, even if you change rice bowl from time to time. Cats also have excellent long-term memory. For people they like or dislike, they will remember for a long time. If owner or small partner who lives with them passes away, cat will also be depressed and unable to eat. It's also price of a too good long-term memory.

(The cat will be very sad when owner dies)
Another sign that cats have a good memory is that they remember past experiences with exceptional clarity. If they have been abused by humans before, they will be very distrustful of humans. Once bad memories form, they will treat people as enemies or threats. So if you meet a very alert furry child, don't blame him, he must have experienced something bad in past.

(Cats remember past experiences very clearly)
So be kind to your cats. After all, they have such a good memory. If you mistreat them, be careful that they don't hold a grudge.
The above is personal opinion of editor, and officials who clean up shit can also tell me how good memory of cat at home is!