. A recent example is the evolution of resistance to antibiotics in the bacterium Staphylococcus aureus, which leads to more than 100,000 infections and 19,000 fatalities a year in the United …

Natural selection : Darwin emphasised that the selection of useful variations by nature is the main (but not exclusive) mechanism for evolution to occur

Evolution occurs in populations when heritable changes are passed from one generation to the next. Genetic variation, whether through random mutations or the gene shuffling that occurs …

Evolution is the sequential gradual changes that take place over millions of years in any organism. Life originated on the earth after its formation. There were many theories that explained the …

Evidence of Evolution-Answers in gray Background unt of research to provide as much evidence as possible. Today, the major pieces of evidence for this theory can be broken down into the …

Natural selection was the mechanism that Darwin proposed for evolution. With the understanding of genetics, it became evident that factors other than natural selection can change allele …

The fossil record, DNA research, the evidence that species have common ancestors, and other findings add up to overwhelming evidence that evolution by natural selection is how life on …