How many centuries has the love of animals with humans been going on? 
Humans started to domesticate the dog forty thousand years ago, compared to the dog, the cat was domesticated only nine and a half thousand years ago, and the main reason why the cat was domesticated so long after the dog was domesticated is that the dog  It eats everything and survives only by eating bones, and the friendship between man and dog also started in the same way that the dog used to come to man to eat the raw meat and bones of the animal it had hunted.  He became familiar with man, while in ancient times the cat used to live only on the tree, where it hunted and ate birds, and that is why the cat likes the meat of birds more, and the reason why the dog lives on the ground instead of the tree.  It has been more closely related to humans than cats, and above all, the dog was found in every continent of the world, while the cat's continent is North America, South America, Australia, British Isles and the Pacific Ocean.  There was no existence in the islands of (Pacific Ocean Islands)!