CHIMPANZEE WITHOUT HAIR SKIN

Someone commented that man in his evolutionary development said: 'No! No! A thousand times no!' to specializations.īesides the ones already mentioned, there are more examples of fetal characteristics retained by man. Man says no to any adjustments that apes, monkeys and other animals develop. Apes specialize, they abandon the fetal form and develop ape characteristics. Since he sticks to the fetal form, man does not specialize. Bolk called this phenomenon fetalization. Louis Bolk spoke of man as a fetal ape, 'an ape fetus that has become sexually mature'. The head hair, the hairless skin, the flat face, the held-back snout, the upright head, they are features the fetal chimpanzee first develops and then loses while growing up, whereas man keeps them. Humans retain fetal characteristics Fetalization

humans have a long development time, which gives body parts that emerge late in the embryonic development a long time to grow and develop.

humans retain fetal characteristics and.

In his book ' Der Erstgeborene'/' Developmental dynamics in humans and other Primates' he shows that the human form can be explained from two characteristics: Jos Verhulst has taken up the work of Louis Bolk and he has developed it further. The head hair, hairless skin, the location of the foramen and the flat face are important for humans only. They have no significance for the adult chimpanzee. The fetal and young chimpanzee have got those features, but lose them. The head of a fetal chimpanzee shows characteristics of the head of an adult human. Again, the baby chimpanzee shows a feature that is lost when it grows up, it is important for man and not for the adult chimpanzee. A chimp does not walk upright, the tilt of his head still allows him to look still straight ahead. With the maturing of the chimpanzee the foramen shifts back, whereby the skull tilts and the snout emerges. Therefore the skull is completely in balance and can be held upright without effort. The foramen magnum (the hole at the base of the skull connected to the backbone) is in the midst of the skull. The same figure also shows that the head of the newborn chimpanzee stands upright on the neck and rump. The baby shows human characteristics, which the adult chimpanzee has lost, such as the upright head, the high forehead, the flat face and the small, restrained nose. for speech.ĭrawings of a baby - and an adult chimpanzee. Again, the flat face has significance for man only, viz. The face of the baby chimp resembles the face of a human, the adult chimpanzee no longer does.

Furthermore, the head is now tilted back, the mouth has come forward and a snout has developed. In the adult, the high forehead has disappeared, thick eyebrows have appeared. On the drawing of a baby - and an adult chimpanzee beneath, one can see that the baby has a humanlike high forehead and a flat face. The human hair was not the only remarkable phenomenon that Bolk saw, there were more striking features. But why should the fetus of a chimpanzee have such humanlike hair, functional for humans, that later turns into the hair growth of an ape, covering the whole body? Bolk was mystified and puzzled.

CHIMPANZEE WITHOUT HAIR SKIN

With humans, the hair on the head offers the upright going human protection against solar radiation and the further hairless skin makes sweating easy. Otherwise the fetus is hairless, as with humans.īolk was impressed by the hair of this unborn ape. The figure on the right shows that the chimpanzee fetus has hair only on top of its head and around its mouth, the same as with humans.

Bolk saw a fetus with remarkably humanlike hair growth. Chimpanzees are born after a gestation period of eight months, so the fetus was about a month from delivery. Man and the chimpanzee Louis Bolk and the chimpanzee A fetus of a chimpanzeeĮarly last century Louis Bolk, professor of anatomy in Amsterdam, Holland, received a 7 months- old chimpanzee fetus. De Javascript-functie van uw browser is uitgeschakeld.ĭaardoor kunt u maar beperkt gebruik maken van onze website.

Chimpanzee without hair