First of all, we need to know the evolutionary history of cats.

One,

The evolutionary history of cats

Cats' ancestors were carnivores living in the desert, which made their excrement very "heavy taste". They were desert animals, and they tried their best to keep water in their bodies when they ingested less water, which also caused their urine to smell particularly "sour".

These smells not only smell bad, but also cause troubles for cats who live in the wild. The prey runs away after asking, and the natural enemies come to you after asking. So cats have developed a good habit of going to the toilet. When they excrete, they will find a hidden place to excrete, and bury it to hide their whereabouts. Soft sand in the desert is undoubtedly the best place to excrete. Later, after some cats were raised at home, this habit remained with the genetic memory, but this habit is not suitable for keeping cats indoors, because when cats excrete indoors, they will raise sand everywhere, and the sand is too heavy to handle, and the ability to deodorize sand is relatively poor. With such demand, it means that there is a market.

Second, 

The appearance of cat litter

One day in 1947, a lady opened her neighbor's door. Because the weather was too cold, she wanted to borrow some sand from her neighbor for her cat to go to the toilet. Because the land outside was frozen, her neighbor, who was a factory producing sand and sawdust, came to borrow some from him. Neighbor Ed Roy recommended her a clay with good adsorption. As a result, this clay was much easier to use than sand, and it reduced odor and had good absorption.

As soon as her neighbor was a qualified businessman, she found business opportunities immediately. Adelroy repackaged clay and sold it in grocery stores, and marched into pet shops and cat shows. Thus, the world's first clay cat litter appeared, and cats moved the toilet place from outdoor to indoor. This is also the turning point of cats from outdoor free-range to domestic.

Later, some biologists invented a new type of clay (bentonite) that can absorb water and agglomerate. After that, the shovel officer began to pursue cleaner and more convenient cat litter. Paper cat litter, pine cat litter, tofu cat litter, crystal cat litter, peanut shell powder cat litter, processed orange peel cat litter and so on have all appeared one after another.

Third,
How to choose cat litter?

How to choose so many kinds of cat litter on the market? The conclusion is, of course, that cat litter that can meet the needs of both cats and shovels is a good cat litter. Some special researchers have found that cats prefer cat litter with fine particles, good feet, no smell and no traces of excretion.

As a shovel officer, we prefer cat litter with strong odor removal, easy cleaning, no bottom touching and no taking out. So you can't have it both ways. If you want to give cats a good toilet experience, I suggest you adapt to bentonite cat litter, which is more in line with cats' habits and preferences. If you want more convenient cat litter, you can choose tofu cat litter. Tofu cat litter can be flushed into the toilet.

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