![]() The “March of Progress” leaves a misrepresentation of how evolution operates. Each branch is pruned and clipped by natural selection. It starts with a thicker branch that represents a common ancestor. Then, it depicts how we evolve from Neanderthals and to modern humans.īut as mentioned already, evolution is more like a tree. The March of Progress (also called the “Road to Homo-sapiens”) shows a linear path. He was just wrong about how traits were passed down through generations. Despite how Lamarck’s theory is incorrect, it paved the way for Darwinism. People don’t pass on traits that they form in their own life. Instead, it’s the fact that species thrive in a particular environment due to their variances in genes from beneficial mutations It’s these differences that cause them to have higher rates of surviving. Or if a giraffe reaches and strains its neck, it assumes its babies will inherit longer necks. It gives the wrong impression that species can pass on favorable traits to offspring.įor example, weightlifters will pass on muscles to children because of their effort in lifting heavyweights. ![]() Lamarck believed species respond to needs. Darwinism and Misconceptions Lamarck theory Generations can pass on short periods of time with higher mutation rates.Ĭhapter 3. Viruses evolve quickly because of the vast number involved. Because we overuse them, it causes them to adapt so antibiotics don’t work against them. We constantly fight to stay on top of them and evolution.Īntibiotic resistance is a direct result of natural selection pressures. Species evolve to adapt to the modern world, including viruses. But there is evidence that Neanderthal DNA is in our genes. They were a branch of their own who died just 40,000 years ago. Then, it shaped another branch into humans. Over 25 million years, natural selection shaped one branch into chimpanzees today. They adapted by facing different situations Each group walked into different environments. ![]() This common ancestor split off into groups like monkeys, chimpanzees, and gorillas. Humans descended from a primate in Africa that existed 25 million years ago.
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