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This lesson takes approximately 13 minutes to complete. It includes 21 interactive questions with immediate feedback.

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The Hungry Season — How does natural selection actually work?

Natural selection is not animals changing to fit their world - it is the ones that already fit living long enough to have babies. You are a bird with three chicks and one wood to feed them from. Four pecks a spring, eat what you can find - and discover that in four springs you have quietly bred a wood full of moths you cannot see. Then the chimneys go up, every tree turns black, and every one of them lights up. Same moths. Same eyes. Different world.

13 min21 questionsGrades 4, 5, 63.0(1 ratings)

VCreated byViafocus

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