Qui a fait la théorie de l’évolution ?
Qui a fait la théorie de l’évolution ?
Portrait du naturaliste anglais Charles Darwin par Julia Margaret Cameron. Il y a plus de cent cinquante ans, le célèbre naturaliste révolutionnait l’histoire de la vie en mettant sur pied les théories de l’évolution et de la sélection naturelle.
How does Darwin devised his theory of evolution?
- After the Beagle returned to England in October 1836, Darwin began reflecting on his observations and experiences, and over the next two years developed the basic outline of his groundbreaking theory of evolution through natural selection.
What does the evolution theory of Darwin exactly mean?
- Darwin’s Theory of Evolution: Definition Darwin defined evolution as a process of « descent with modification. » He believed that some organisms within a species have trait variants that make them fitter and more likely to reproduce. Over time, inherited modified traits become dominant in the population, and a new species may emerge.
What did Darwin not know about his theory of evolution?
- Darwin did not know that DNA would become an important part of his Theory of Evolution. In fact, the subcategory of evolution called microevolution is completely based on DNA and the mechanism of how genetic information is passed down from parents to offspring.
What did Darwin say about evolution?
- Darwin didn’t know anything about genetics, Pobiner said. « He observed the pattern of evolution, but he didn’t really know about the mechanism. ». That came later, with the discovery of how genes encode different biological or behavioral traits, and how genes are passed down from parents to offspring.