What are the animals running on the ground, and what kind of animals are called on the ground?

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Most of the mammals are, also called tetrapods. For example, cows, horses, sheep, pigs, dogs, cats, rabbits, tigers, bears, foxes, etc.

There are also many reptiles, such as lizards, four-legged snakes, turtles, snakes.

Certain flightless birds, such as ostriches, emus, and walkers.

Aquatic animals that have come ashore, such as certain crabs.

A lot of insects, like ants, some beetles.

Many non-insect arthropods, such as spiders, scorpions, centipedes, horses, grasshoppers.

Lions, tigers, wolves, ostriches, ferrets, mice, cats, dogs, leopards, foxes, rabbits, lions, antelopes, chickens, ducks, geese, donkeys, cows, horses, hyenas, jackals, elephants, etc.

Animals are a species of living beings. They generally feed on organic matter, can feel, can move, and are able to move autonomously. Something that is active or capable of moving.

Including people. According to fossil research, the first animals to appear on Earth originated from the ocean. After a long geological period, early marine animals gradually evolved into various branches, enriching the early life forms on earth.

Prehistoric animals appeared before the advent of humans and flourished during their respective periods of activity. Later, they became extinct one after another in a constantly changing environment. However, the animals on Earth continue to evolve and reproduce from the lower to the higher, from the simple to the complex, and have the diversity they have today.

Scientists divide the extant animals known to humans into two major types: invertebrates and vertebrates, according to the presence or absence of a vertebrate in their bodies. Scientists have identified more than 46,900 species of vertebrates. It includes fish animals such as carp, yellow croaker and grass carp, reptiles such as snakes and lizards, amphibians such as frogs and baby fish, birds and mammals such as red pandas.

Scientists have also discovered more than 1.3 million species of invertebrates. Most of these animals are insects, and most of the insects are beetles. Sluggs, earthworms, squid, oysters, red starfish, jellyfish, spiders, polyps, radiolaria, roundworms, pork tapeworms, sand silkworms, snails, slugs, etc., are all invertebrates.

There are many, such as; Cats, dogs, wolves, chickens, ducks, geese, tigers, antelopes, lions, mice, cows, horses, sheep, pigs, people, and more.

chickens, ducks, geese, dogs, cats, wolves, donkeys, cows, horses, ......Many, many = . =

The animal running on the ground calledMammals

Lions, tigers, wolves, ostriches, ferrets, mice, cats, dogs, leopards.

Foxes, rabbits, lions, antelopes, chickens, ducks, geese, donkeys, cows, horses, hyenas.

Jackals, elephants.

Wait. Animals are a species of living organisms that generally feed on organic matter, can feel, can move, are able to move autonomously, move or are able to move, including people.

Mammals:

Mammals are the animal world.

It is an animal with the highest morphological structure and the most complete physiological functions. Compared to other animals, the most prominent feature of mammals is that they are viviparous and that their young are fed with milk secreted by their mothers. Mammals have fur to keep their body temperature constant and adapt to a variety of complex living environments.

Mammals have a well-developed brain, so they can produce more complex behaviors than other animals, and can constantly change their behavior to adapt to changes in the external environment.

There are more than 4,000 species of mammals in the world, and although they are all highly evolved, they still have a lot in common: almost all mammals are warm-blooded, with a basically constant body temperature, and their bodies are covered with hair to protect their bodies, isolate them from heat and cold, and so on.