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Event #1 : Prior to the industrial revolution, most peppered moths were grey. A few were black.

Evidence The trees that the peppered moths lived in were grey in color. . Vocabulary grey color was an adaptation an adaptation is a trait that helps an organism survive and reproduce grey color helped moths survive and reproduce . grey moths had increased f itness

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Event #1 : Prior to the industrial revolution, most peppered moths were grey. A few were black.

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  1. Evidence The trees that the peppered moths lived in were grey in color. Vocabulary • grey color was an adaptation • an adaptation is a trait that helps an organism survive and reproduce • grey color helped moths survive and reproduce. • grey moths had increased fitness • Grey moths were less visible to predators Event #1: Prior to the industrial revolution, most peppered moths were grey. A few were black.

  2. Evidence The grey peppered moths were more visible to predators than black moths. Vocabulary • black moths were more fit because they were more likely to survive and reproduce • Natural selection- the environment determined which the organisms which would survive and reproduce • Black moths reproduced with other black moths, passing the black color adaptation to offspring. Event #2: Pollution from the industrial revolution turned many trees black.

  3. Evidence Peppered moths were more fit in the environment the the back trees. Vocabulary • Evolution had occurred in the moths. They had changed over time and several generations. • Directional selection- one type of moth became more common. Event #3: After the industrial revolution, most peppered moths were black.

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