The [peppered-moth] experiments show the effects of…
“The [peppered-moth] experiments show the effects of predation on the survival of the dark and of the normal forms of the Peppered Moth in a clean environment and in one polluted by smoke. The experiments beautifully demonstrate natural selection--or survival of the fittest--in action, but they do not show evolution in progress, for however the population may alter in their content of light, intermediate or dark forms, all the moths remain from beginning to end Biston Betularia.”
About This Quote
This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.
Experiments demonstrate natural selection in moths, showing predation effects but not evolutionary progress.
In simple terms: Moths illustrate natural selection.
Recognize selection in nature.
Themes
Mood
Type
When to use this quote
- field studies
- education
- conservation policy
- public outreach
Key Concepts
Questions to Reflect On
- How does selection differ from evolution?
- What other examples exist?
Does not prove evolution's direction.