Why are dogs so loyal to humans?

Dogs and canids (wolves, wild dogs, jackals...) are mostly pack animals.

So did the ancestors of dogs.

Therefore, dogs can easily live in peace with other animals (including but not limited to humans, sheep, cats, other dogs, other poultry and livestock) and within a group of canines, there are distinct classes. The leader of the group is the boss, and the other dogs must obey the boss. And when dealing with the boss, there are some ceremonial etiquette, such as licking the boss's mouth, lying down, and showing the belly to the boss. . .

A domestic dog will take the owner as the boss for granted, lick the owner as a matter of course, lie down in front of the owner to show obedience, and show his belly to the owner to show trust in the owner.

Animals like wolves have distinct classes. Even when eating, the boss eats first. If dogs of lower classes want to eat, they must be fed and allowed by the bosses before they can eat. Therefore, the dog will also bring these class consciousness to the owner's home.

Wolves, wild dogs, they all hunt in packs. They are all under the command of the boss, cooperating with each other and hunting. To cooperate with each other, it is necessary to understand the language of the boss and other partners (including passwords, body language, and facial expressions). Therefore, they can understand human language and passwords instinctively.

Moreover, the digestive system of dogs and canines can digest starch. Canines are all omnivores (including big bad wolves and the like, who eat meat whenever they have meat, and also eat plant foods such as berries when there is no meat. Coyotes eat a lot of plant food). Therefore, For ancient humans, using a little leftovers is enough to give dogs good nutrition. Ancient humans were happy to raise and tame primitive dogs.

But cats can't. Cats are basically solitary (except for lions. But male lions also prohibit other male lions from entering their territory). And it monopolizes dozens or even thousands of square kilometers of territory (even desert cats, which are about the size of small domestic cats, also monopolize hundreds of square kilometers of territory).

It takes a lot of effort for them to barely learn to live under the same roof as their own kind, their masters. Cats are all ambush hunters. There is no need to communicate with your companions, cooperate with hunting, and do not need to form a team to cooperate. Therefore, cats work hard, and it is difficult to understand human instructions, or only understand very few instructions. Cats hunt and eat by themselves. Therefore, they will not obey any leader, so the obedience of domestic cats is also extremely poor.

Cats cannot digest starches and cannot taste sweetness. Can only eat meat. Therefore, ancient humans, when food was not sufficient, actually did not really raise and tame cats. Instead, the cats were allowed to live near the village and come to hunt in the family barn.

This just allows them to get close to humans, not humans to really raise and tame them.

In general, dogs are naturally suitable for domestication, and their nature is waiting for humans to domesticate.

As the owner, you can treat him better, such as rewarding him with a dog ball toy once in a while.