Dogs are the most loyal companions of our human beings.
So you dog dads and moms, the following ten dog cold knowledge, how many do you know?
1, the dog can hear a very high frequency of sound
Dogs can hear up to 45,000Hz, more than twice as tall as a human.
But they are not yet champions, porpoises, and can hear sounds at 150,000 Hz.
2) In the Bible, dogs are mentioned a total of 14 times
--And the cat is never mentioned.
Well, it seems that in ancient times, dogs were more important than cats.
3, dogs and people, there will be a big aunt
- Female dogs usually menstruate twice a year, in the spring and autumn, each lasting nearly half a month.
During menstruation, the female dog's private parts will be red, swollen and bleeding, and the female dog will actively seek the male dog to have sex.
During this time, the dog owners must take good care of it, after all, who calls it a girl. Also, the host had better not take it out of the house so as not to get pregnant.
4, dogs also have unique fingerprints
Like human fingerprints, each dog has a unique nose print, and no two are the same.
Maybe there will be an APP in the future that can store the nose prints of dogs and use them to find lost dogs.
5. A dog named Laika
In 1957, he became the first dog to go into space.
6) People have been keeping dogs as pets for 12,000 years
Without dogs, human civilization would have been delayed for many years. Because captivity and animal husbandry will be delayed for many years.
7, the dog and the owner will really appear "husband and wife"
In a study conducted at Bath Springs University in the United Kingdom, people paired puppy photos with photos of dog owners.
In the choice of one of the three, people have more than 50% chance of being able to correctly select the dog and the corresponding owner.
8, dogs will also have emotions
Scientists in Austria have shown that dogs also feel unfair if they find that other dogs have been treated better, creating a "disgust with unfairness."
Therefore, out of jealousy, the dog will act harder at this time in order to get a reward.
9. Great doctors
A 2006 study showed that the average family pet dog could smell lung and breast cancer with a little training.
An oncologist in Sweden also found that dogs can distinguish between different types of ovarian cancer. It seems that friends who have dogs may wish to consider making a cameo appearance as a family doctor.
10. Potential little genius
Again and again, dogs have broken the limits of a dog's IQ as defined by scientists
Austria has a 7-year-old border collie that even learned 340 English words.
As long as the owner writes the words it knows on the paper, the sheepdog will make corresponding actions, including looking for something.