What are the benefits of science

Science: Evolution not only brought benefits to humans

Evolution helps survive. Researchers in Boston have now made it clear that their results are not always perfect. Humans have also experienced disadvantages through their development.

Evolution doesn't always bring benefits

Evolution also brought people disadvantages: The development over millions of years has also brought us disadvantages, said US researchers on Friday in Boston at the congress of the world's largest scientific association, the AAAS. So the head circumference grew with the brain. "No other (mammalian) species is as dangerous as humans when giving birth to offspring," said the anthropologist Karen Rosenberg from the University of Delaware.

Humans also lost skills through evolution

Wherever they have to give birth to their child without the help of a doctor or midwife, women are very often at risk of fatality. The researchers also attribute back problems, slightly sprained ankles and foot pain as well as problems with wisdom teeth to deficiencies in human evolution. "We have more joint infections than great apes, our closest relatives," said Bruce Latimer of the Cleveland Museum of Natural History. As a result of their upright gait, humans are also the only mammals that have a curvature of the spine, scoliosis. Even the 3.5 million year old fossil of "Lucy" from the species Australopithecus afarensis already shows traces of scoliosis.

Man, the most powerful of all mammals

With the growth of the brain from around one liter in the early days of the genus Homo to a volume of up to 1.6 liters in people today, the shape of the skull also changed. With it, the dentition widened and pushed the third molar, known as the wisdom tooth, to the side, explained the anthropologist Alan Mann of Princeton University. dpa / AZ