Squeaks and Jessi have a story to tell you about the peppered moth, a special insect that taught us a lot about a process called natural selection.
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SOURCES:
animals.howstuffworks.com/ani...
askabiologist.asu.edu/peppere...
www.bbc.co.uk/schools/gcsebite...
www.britannica.com/animal/pep...
www.britannica.com/event/Indu...
www.britannica.com/science/li...
www.britannica.com/science/na...
www.britishmuseum.org/research...
eol.org/pages/298821/details