An animal or other expository essay of 400 words or more. The topic should be good

dogs, one shape and one size; The colors and varieties are very rich; And it's a cute animal because of its flexible nature.

The dog's facial features are also as upright as a human, and his limbs are even more sound. They walked, swayed, and were very happy. In general, the length of the dog is about eight decimeters, and its weight does not exceed 35 kilograms......

The color of dog hair is colorful, and the varieties are even more numerous. The color of dog hair is mainly black, yellow, and white, and some are black and yellow, yellow and white, and black and white ......It is said that the color of a dog's fur is related to its nature: the black one guards the door of the house and is as fierce as a tiger; Huang's seems to be wandering, coming and going freely; White's innocence and liveliness are obedient to ......According to many years of statistics, dog breeds account for about a quarter of the world's total number of animals; Among them,"Shar Pei"It is our famous brand dog breed in Dali.

About 500 families have adopted the ......

Dogs are flexible by nature. There is hardly a dog in the world that is demented and does not like to eat or play. However, the dog is very agile.

When it sees the appearance of rats and insects, the dog will show its own skills and quickly catch and keep an eye on them"Prey"；Within the dog's line of sight, there is hardly one"Prey"Able to break away from them"Five Finger Mountain"。

Dogs don't eat much, but they are very picky. Dogs eat about one-third of what humans eat every day, and only eat fish, meat or other bones, and most vegetables and fruits do not like to eat ......

The intelligence of dogs is also extraordinary in the lower animal kingdom, and it is a higher animal--"Humans"of a quarter of intelligence. Dogs trained by human training are able to perform many difficult maneuvers: they can accurately pick up small objects falling from high altitude at low altitudes; Standing on one foot, holding a human's hand with both hands, ...... as if dealing with a human

Dog - a good animal that everyone loves, is smart and smart.

Woodpeckers --- forest doctors, are common to stay.

Birds, the most widely distributed species in our country are green woodpeckers and spotted woodpeckers. They specialize in foraging for pests such as longhorn beetles, gidding insects, permeated wings, and stupid insects, and can eat about 1,500 of them every day. Because of the large amount of food and wide range of activities of woodpeckers, in the forest of 13 3 hectares, if a pair of woodpeckers inhabit, a winter can peck more than 90 gidding insects, peck more than 80 shoulder star longhorn beetle, so people call woodpeckers "forest doctors".

There are about 180 to 200 species of woodpeckers, and they are known for searching for insects in the bark of trees and burrowing holes in dead wood for nests. Most woodpeckers are resident birds, and a few species have migratory habits. Most woodpeckers spend their entire lives in the woods, spiraling to climb tree trunks in search of insects; Only a few above-ground foraging species are perched on the branches like passerine birds.

Most woodpeckers feed on insects, but some species eat fruits. Sap-sucking woodpeckers generally suck the sap of certain trees during a certain season. In spring, the male woodpeckers that occupy their respective fields chirp loudly and often peck at the hollow trunk and occasionally strike the metal, thus increasing the sound, but in other seasons the woodpecker is usually silent.

Woodpeckers tend to be non-social and tend to live alone or in pairs. Different species of woodpeckers vary greatly in size, ranging from a dozen centimeters to more than forty centimeters. For example, the velvet woodpecker is about 15 centimeters long, and the North American black woodpecker is about 47 centimeters long.

Woodpeckers are able to jump from trunk to branch with incredible speed. They are able to stand firmly on vertical tree trunks, which is related to the structure of their feet. The woodpecker has two toes facing forward, one to one side and one backward, with sharp claws at the tips of the toes.

Woodpeckers have stiff tail feathers that can rest on tree trunks to provide additional support for their bodies. They usually use their beaks to quickly tap on the trunk of trees to find insects hiding within the bark, and when determined, their hard beaks are able to quickly peck a deep hole in the bark and stick out their long tongues like lightning to catch insects.

The acorn woodpecker is about 20 centimeters long and inhabits the northwestern part of North America to Columbia. The red-headed woodpecker is similar in body length to the acorn woodpecker, about 19 23 cm. It is widely distributed and can be seen in open woodlands, farms and orchards.

The red-backed woodpecker is found in the forest zone from India to the Philippine archipelago. The green woodpecker is found in the warmer climates of Europe and the African continent. Red-bellied woodpeckers are found in the deciduous forest belts of the southeastern United States.

The emperor woodpecker, also known as the white-billed woodpecker, is native to northern Mexico. The feathers are black, with white spots on the wings and neck. The male bird has a red crest and a white beak, making it the largest known woodpecker.

Male adults can reach a length of up to 60 centimeters. Emperor Woodpecker and Tristan.

Use the above method of illustration, give examples, make comparisons

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The dog is a cute little animal, well-behaved, humane, and very likable. The dog's bark was loud, not big, not small, but full of energy. They are rich in color and have sensitive organs. Dogs are flexible by nature, and if you look closely, you will find it very interesting.

The color of dog hair is mainly black, yellow, and white. The black one guards the door of the house and is extremely fierce. Huang is wandering, free, and carefree. The white ones are docile and lovely, pure and lively, obedient to their words, and suitable for those who live in the building.

Dogs have sensitive organs. Its ears are as sensitive as a receiver, and no matter where you call it within a 100-meter radius, it will run in your direction. The dog's sense of smell is also remarkable, and it can find you even if you drop it far from home.

There are countless examples of dogs looking for their owners. There is a couple in the United States who once lost their most beloved sheepdog, but half a year later, the lost sheepdog appeared in front of the owner with his sensitive sense of smell and four amazing calves.

Sleep is an essential form of rest to restore energy and maintain health. Dogs need 14 to 15 hours of sleep every day, and instead of sleeping enough at once, they divide into sections. Dogs have about a quarter of the intelligence of a human, and if they are well trained, they will be excellent.

After listening to my introduction, do you think dogs are very cute and amazing little animals? Now that we have become its masters, we should do our part to take care of them.

Write an essay of more than 500 words on animal explanatory methods.