Charles Darwin was a scientist. He lived from 1809 to 1882. He observed variation happening in nature. He hypothesised the Theory of Evolution, which was how life had changed over time. This could also be known as how modern species have developed from ancient organisms. Darwin observed that organisms normally produce more offspring than can survive. Also not all offspring are identical. There is variation (differences) in their physical traits. Lastly, different organisms must compete to survive. The organisms that survive are the best suited for their environment and will pass those traits down to its offspring. This is called natural selection.
One piece of evidence Darwin used to support his theory was fossil records. Fossils are
One piece of evidence Darwin used to support his theory was fossil records. Fossils are