It is impossible to tell unambiguously what animal consists with the person in the next relationship. The fact is that some animals approach the person at the genetic or anatomic level, and others have similar intellectual features.
The closest relative of the person is a monkey?
Not absolutely so! Such statement was relevant several decades ago. Then was considered that the closest relative of the person – an anthropoid. As confirmation of it served the so-called scale of ingenuity among animals. According to this scale, humanoid primacies most closer stood to the person. However a number of the experiments and experiments made now remove a monkey from close relationship with the person further and further.
According to the theory of evolution, the homo sapiens is the underdeveloped monkey having one chromosome less than, for example, a chimpanzee, but the having similar structure of a skull and front extremities. Now Charles Darwin's theory about origin of the person from a monkey is not confirmed that allows world scientific minds to try to discover everything new "relatives" of the person.
Similarity of the person to a dolphin
The researchers studying brain features of animals found out that the encephalogram of dolphins of an afalin brings together them with the person. The fact is that the brain at this species of dolphins is most similar to human. Gray substance at these animals is slightly more in sizes, than at people and also contains bigger quantity of crinkles. According to researches of the Swiss professor A. Portman, intellectual features of a dolphin ranked second honourable after the person (the third place at elephants, and the fourth – at monkeys).
What unites the person with pigs?
The anatomic structure of pigs allows to call them the immediate family of the person. The fact is that the embryo of this mammal has laying of a five-fingered extremity and a muzzle which is very reminding a human face. The patch on a pork muzzle and hooves on legs develop just before childbirth. Besides, already been born pigs possess the maximum physiology with people. For this reason pork bodies (liver, kidneys, heart, a spleen) use in surgery for transplantation to the person.
Similarity of people to rats
These rodents too wonderfully copy the person at the anatomic level, but not so as much as possible as pigs. Rats have the same composition of blood and structure of fabrics, as people. It is curious that these rodents are the only animals in the world who (as well as the person) have abstract thinking. Rats are able to do simple conclusions, as allows them to be so hardy. Besides if a rat to increase to the sizes of the person then to straighten a skeleton, then it is possible to see that joints of people and rats have the same anatomic building, and bones have equal quantity of fragments.