Explanatory text about dogs

Dogs are docile animals and very humane, so people keep them as pets. Below is an explanatory text about dogs that I have compiled. Welcome to refer to it! Explanatory text about dogs 1

Hi, my name is dog, and I am mankind’s most loyal friend. Not only do I have a cute appearance, I also have a keen sense of smell. What? Why is my sense of smell so sensitive?

Hi! Let me tell you! My olfactory nerves are directly connected to my cranial nerves. The olfactory nerves are densely distributed in the nasal cavity. My sense of smell is very sensitive, especially my brother, a police dog. Therefore, my brothers are widely used in various criminal investigation activities.

Shh! Let me tell you a little secret: My mother told me that there are only 5 million human olfactory cells, covering a small part of the upper mucosa of the nasal cavity, with an area of ??only 5 square centimeters. As for our dogs, we have 125 million to 200 million olfactory cells. We can sense the odors of two million substances in varying concentrations. Generally, every cubic centimeter of air contains 26.8 billion gas molecules. As long as there are 9,000 oleic acid molecules in it, we can smell it. Therefore, the nose is an important part of our dogs and is much more complicated than other animals. There is a small, hairless, raised area at the tip of our nose, which is covered with a layer of mucosal tissue. There are many special olfactory cells on the mucous membrane tissue, which are responsible for the sense of smell. Every time we sleep, we hide our noses behind our forelimbs. Even our ancestor, the wolf, is like this.

Although wolves are our ancestors, we are still very different! Although wolves are smarter than us, we are docile. Our mouths are wider than wolves, our teeth are smaller, and our tails are often raised to express our emotions.

Our laughter is very special, usually with a "woo, woo" sound coming out of our mouths. Our laughter can also infect others of the same kind! But when we get tired of playing, we often stick out our tongues. Because our sweat glands are different from your human sweat glands. Our sweat glands do not grow on the surface of the body, but on the tongue! Don’t get me wrong, we don’t stick out our tongues only in the summer. Just like you, when your body is hot, you sweat. Even the cold winter is no exception.

The history of our dogs is also very long! In China, there have been reports of discoveries of our ancestors from Neolithic sites. For example, the skeletons of our ancestors were found at the Hemudu site in Yuyao County, Zhejiang, which dates back 700-6,500 years ago. Our footprints were also found in the 7,000-year-old Cishan ruins in Wu'an County, Hebei Province.

This is us, keen sense of smell, smart and capable, loyal and brave.

We will always be mankind’s most loyal friends. Explanatory Essay about Dogs 2

Dog is a well-known animal that is very lovable.

Some dog owners often bathe their dogs, especially if they are washed cleanly, so that the dogs can have better energy and be more effective at guarding the door at night.

The reason why dogs can identify things at night is because they have a pair of keen ears and a keen sense of smell. Dogs have very keen ears and can hear sounds within 1 kilometer. Their auditory perception ability reaches 120,000 Hz, which is more than 6 times that of the human body. It can also hear sounds from multiple directions, twice as much as humans. With such hearing, even if a pin drops to the ground in the distance, you can hear it clearly.

Dogs not only have a keen sense of hearing, but also a keen sense of smell. For a guard dog, a keen sense of smell is an essential part. Dogs' sense of smell has 220 million cells, 250 times that of humans. They can distinguish more than 200 different smells, so some people train dogs into police dogs and military dogs to help the police catch suspects or solve crimes.

Through the cooperation of the dog's sense of hearing and smell, the dog can listen and smell at the same time, so the dog can maintain a high level of vigilance even when sleeping, and can distinguish sounds within 1 kilometer in diameter. But precisely because of this, too high a sound can also affect the dog's life.

Therefore, loud noises can also be painful for dogs.

This is the end of the introduction to dogs. I hope everyone can get along well with dogs. Explanatory Essay about Dogs 3

Not long ago, a very cute member came to my family - a cute puppy.

It was a stray dog ??that my parents saw when they went for a walk at night. Seeing how pitiful he was, my parents took it home and then lived in my house. Later we gave him a name - Pippi.

Its fur color is very beautiful, most of the fur on its back is brown and black, only a small part is white; the fur on its abdomen is all white; its two ears are very much like Pig Bajie’s ears; his tongue is very It's so long that you can lick its black and small nose; its tail is like a blooming chrysanthemum, and it always sways when it walks. His feet were short and he bounced as he walked.

It has been almost three months since it came to my home, and I have become familiar with this cute puppy. It is very naughty, but very good at pleasing its owner; The people are very well-behaved.

When we are getting ready to go out, it is always very excited, always wants to follow us out, dances and barks, is happier than us, and makes us feel funny and helpless; but if we When we go out to work or go to school, we wave our hands and say goodbye to it, and it will sit obediently at the door and watch us go down the stairs; when we come back from get off work or school and just go up the stairs, it will know who is coming back, and He immediately ran to the stairs to greet us.

We always take it out for a walk in the evening. Usually we don’t need to pull it. We walk slowly in front and it will follow behind. But he is very naughty. Some shops have air conditioning on, so he got in without us paying attention, lying lazily on the ground, motionless, enjoying the air conditioning there. I reached out to hold him out, and he He just barked at me and even pulled my shoelaces loose to prevent me from leaving. The sales clerks next to me looked at them and laughed, which made me feel embarrassed. But because it looks so cute, many people like it very much.

When it is happy, it always likes to run around; when it is unhappy, it always runs to lie under the sofa; sometimes it makes people angry and funny, sometimes it makes people hate and pity; he gives We brought laughter and endless joy.

This is my dog ??- Pippi.