After learning the concept of felines

Overview, felines are a more carnivorous group of predators that eat a greater proportion of meat in their diet than the slightly more omnivorous Canidae and the more omnivorous Ursidae. In their evolution, felines have gradually developed a predatory pattern adapted to ambush, stalking and short-distance pursuit, and the physical characteristics that go with it. They have soft and flexible bodies and limbs with soft toe pads on the soles of their feet, and the vast majority of their claws are retractable. Their head is hemispherical, with a short muzzle and a skull with broad zygomatic arches and a pronounced sagittal crest to which strong jaw muscles can be attached, providing them with a powerful bite. Their eyes face forward, very close to the binocular vision of humans, with reflective membranes under the eyeballs, a high proportion of optic rod cells in the retina, and pupils that can rapidly change size to adapt to changes in light, and strong night vision.

Felines have a shorter muzzle compared to other carnivores (e.g., canines)

Felines have broad zygomatic arches and a pronounced sagittal crest

Additionally, felines have an interesting feature in that they, along with spotted hyenas, and some marine mammals, have a mutation in a gene called Tas1r2, and thus are unable to perceive the sweetness in their food.

Felids first appeared in Europe during the Oligocene epoch 25 million years ago, and their oldest members were called proailurus, a small group of animals that were relatively small, only a little larger than modern domestic cats.

Recovery of the proailurus

Though born in Eurasia, extant felines have long been found in a wide range of regions, except for Oceania, Antarctica, and a few islands in the oceans. According to research in molecular biology, felines have undergone at least ten intercontinental migrations in the course of their evolution, including back and forth between Eurasia, Africa and North and South America via the Isthmus of Suez, the Bering Land Bridge and the Isthmus of Panama. The most typical example is the cheetah, which has the same ancestry as the puma and the cat, and after they diverged in North America, a branch of the cheetah's ancestry returned to Eurasia and migrated to West Asia and Africa, while the branch that remained in the Americas gradually disappeared.

In the traditional classification, the feline extant taxa are divided into two major groups, respectively, the subfamily of leopards and the subfamily of cats, and the difference between the two in the external morphology of the answer to the next question I have a brief description of it, and will not be mentioned here for the time being.