Advice 1: Why man belongs to the mammal

Mammals – a class of vertebrates. To their features, in addition to feeding babies breast milk, it also includes the live birth; they also have other distinctive features. There are about 4,500 different species of members of this class.
Why man belongs to the mammal
Of female mammals during the suckling babies receive the milk. It is secreted from special glands that are called mammary. For newborn mammals is a natural food, but each species has its peculiarities. For example, in the milk of the domestic cat protein sequence is about 10 times more than cow's milk. In Zoology there is a special unit dedicated to the study of mammals. It theriology. As people also suckle their infants with milk, and they belong to this class of living beings. In addition to feeding, the person has other features common to all mammals.Important feature, which is particularly strongly expressed in humans, is the development of the forebrain and the cerebellum. In most species of this class the brain is complicated, has many convolutions and folds, and the more and the harder they are organized, the more diverse may be behavior of the animal. Developed peripheral nervous system allows mammals to respond quickly to external stimuli. They also characterized by binocular vision, that is, the picture in the brain is formed based on the image with both eyes, in contrast to birds, who see with two eyes separately.Features such as breathing through the lungs and the presence of four-chambered heart, are common to mammals. Most of them have hair that is required to maintain a constant body temperature. This is a warm-blooded species, and their average body temperature in the class is approximately 30 degrees. The exceptions are whales and hippos, as well as the human species, who protect themselves with warm clothing. Mammals are an amazing class, its types are very diverse. Some of them fly, others live on the earth's surface, there are many such, who spends most of life underground. They are not too similar to each other. Just present among mammals there are 20 units available animals, even a little more than 10 groups are extinct. The hominids, which include humans, it is the order of mammals primates. In addition to the modern manand Homo sapiens, hominids include Neanderthals, Pithecanthropus and some fossil species of humans, such as Australopithecines.

Advice 2: Why the cat is eating the earth

Inexperienced cat owners sometimes gives a shock the sight, when the pet is eagerly eating the soil from the pot. However, this behavior of cats is not a deviation from the norm and do not even reproach drawn up by the owner of the animal's diet, it is a natural desire to fill certain elements in the body.
Why the cat is eating the earth
Instruction
1
If you notice that the cat is addicted to the earth, will review his food. Most likely, he moved to the "clay" type of food because of a lack of vitamins and minerals. Try to add calcium in food, it can be cheese products, yogurt (no more glasses once every two days), sometimes even crushed egg shells. Consult your vet, he will prescribe your pet the correct rate of complex vitamins, prop that the animal will get rid of bad habits.
2
A recovery time, it is desirable to exclude from a diet of dry food and fill it with natural products since the dry rations lack many nutrients needed for proper development of your cat. Food need to eliminate gradually, for example, replacing the first one of the meals with natural food, and a week the second.
3
The reason for eating earth may be the helminth infections, i.e., parasites, attacking the cat's body, and consuming a huge amount of vital substances. In this case, to help specialty drugs, drink will have a full course, to interrupt which is not even with the onset of visible improvement.
4
Another reason for eating the earth can be banal worms that cause a perverted cat's appetite. To resolve this problem is not difficult. Animal need propeity special cure various types of intestinal worms – Drontal.
5
Also there is a theory that cats eat ground, to clear your stomach. Everyone knows that when the cat washes, in their body in large quantities gets wool. Persistent eating of inedible food can indicate that your pet is trying in this way to clear your stomach from hairballs. In any case, to take the land is not worth it, always remember that nature took care of the animals, awarding them the instincts, including those that will help themselves to get rid of several diseases. It is the concern of a good owner to help the pet and not to miss the moment when "folk" remedies don't work, replacing them with medicines.
Note
Actively eat dirt start in the first place cats who have a diet of excess meat. If the cat is a predator, it does not mean that it needs to only meat products. Meat reduces the level of calcium in the body, causing rickets and osteoporosis, so let your favorite cereals, or crush the greens, completely eliminate pork and bread.
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