Labels:bird | book | bulletin board | clock | comic book | daily | newspaper | rock | sky | tribute album OCR: WHAT EVoLUtioN? is a gradual change differences. Some give an organism it living things that hap pens better chance of survival, and Sr these over a long time, often milli ons years favorable characteristics can he passed Evolution happens because organisms offspring. Other indiv viduals compete for food, shelter and mates without these characteristics might die Although organ isms may belong to the before reprod ucing This weeding-out same species, they still have process is called natural selection Living fossils Evolution in action Caimans are called living Peppered moths are fossils because they bave barely normally pale, although changed for 150 million vears darker forms sometimes Paler moth appear These are rare country areas because Darker moth SEE EXAMPLESP EVIDENCE FOR they are e ...
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