Lefford- Natural Selection Drawing
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Population of Snakes
The Offspring Arrive
Rain Comes Overnight
A Population of the African Snake which can be yellow or green, and both blend in environment equally well. Variation.
Grass Is Here!
Overproduction of Offspring so that many snakes will survive and Variation
End of the Yellows
The Drought is finally over!
Sadly now the green colored snakes have an advantage. They blend into the environment and can not be eaten by the eagles. The yellow ones are picked off which is an example of selection.
Now there are less yellow ones in the population.
There are less yellows now passed onto the offspring. Adaptation is where these new traits (green) will be passed on in larger numbers.
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