Cats and dogs may have the same ancestors
Whether it is appearance characteristics or living habits, cats and It can be said that dogs are two completely different existences. However, some scientists say that cats and dogs have the same ancestor, and I believe that most people are skeptical about this conclusion.
1. The unearthed fossils are suspected to be the ancestors of cats and dogs
1. Mammal dead stone
Previously, the British "Daily Mail" reported that Belgian scientists discovered an entirely ancient mammalian dead stone. Dead stone, and according to relevant information, the unearthed creature may have lived in a humid forest 55 million years ago. This fossil is mainly composed of ankle bones, with about ten fragments. This species has also been named Dormaalocyon latouri, which is the name of the Belgian countryside where the fossil was unearthed. So scientists used the fossil's restoration map to show that Dormaalocyon was an arboreal animal weighing about 10 kilograms. It mainly fed on smaller mammals and insects and looked like a combination of a small jaguar and a squirrel.
Having the same bloodline. Belgian paleontologist Floreale Sauer discovered through research that many types of mammals, such as cats and dogs, lions Both bears and bears share a common ancestry with an arboreal mammal of unknown origin.
Through the analysis of nearly 14,000 teeth selected from the soil of the area where the fossil was unearthed, a total of nearly 40 mammal species were discovered. , including 280 new tooth samples from an unknown new species.
This species originated early and was found from unearthed teeth. Its appearance is very primitive, so it probably originated in a very early era. These facts all mean that This unearthed fossil is very close to the origin of carnivores, and this origin probably occurred in Europe.
From the unearthed ankle bone fossils, it was revealed that Dormaalocyon is an animal adapted to running in humid forests, which is also consistent with the natural environment in local history. Professor Sauer said, "Dormaalocyon provides the largest information about the evolution of placental mammals after the disappearance of the largest dinosaurs, allowing scientists to propose the hypothesis that they may have become diversified in the late Paleocene.
< p style="text-indent:2em;">The study and understanding of Dormaalocyon will be critical to reconstructing the adaptation of placental mammals to a carnivorous diet, which means there are still more fossils to be discovered. , and shed light on the origins of these largest domestic pets.
Cats and dogs have very different habits, so it is important to distinguish between them
2. When do cats and dogs join human life
1. Time to join human livelihood
Action Domestic animals, cats appeared later than dogs. Dogs have joined human life between 20,000 and 50,000 years ago, while cats only gradually joined human life around 5,000 years ago.
2. Traces of domestic cats
Origin from ancient Egypt, ancient countries in West Asia and other places Domestic cats have been around since then, and traces of domestic cats can be found on the murals and manuscripts of temples in ancient Egypt and Thebes on the banks of the Nile River.
3. Investigation into the domestication of cats
Some experts believe that the first people to domesticate cats were the Egyptians, about 3,600 years ago. . However, discoveries in genetics and archaeology indicate that the domestication of cats may have occurred in the Fertile Moon 10,000 years ago, when agriculture began to develop.
3. Distinguish the customs of cats and dogs
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