Spieces change over time to suit their environments some die out.
1. a species is made up from individuals with different characteristics
2. sppeicies tend to inrease in size with each generation
3. nature tests each species through things like predators disease and lack of food
4. nature seems to be kinder to some speices
5. it is therefore esier for these species to survive and care for their offspring
6. all ofspring inherit traits from their parents
7. darwin calls this natural selection
8. over a long period of time natural selection would make a species change
9. this ultimately bringsd about new species
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