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All we have observed is where moths do not spend the day. In 25 years we have found only two betularia on the tree trunks or walls adjacent to our traps (one on an appropriate background and one not), and none elsewhere
Cyril Clarke
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Cyril Clarke
Age: 93 †
Born: 1907
Born: August 22
Died: 2000
Died: November 21
Geneticist
Lepidopterist
Physician
University Teacher
Leicester
England
Appropriate
Moths
None
Trunks
Spend
Traps
Wall
Observed
Tree
Elsewhere
Found
Walls
Two
Background
Years
Backgrounds
Adjacent
More quotes by Cyril Clarke
You could say people are living longer because of the decline in religion. Not many people believe in the hereafter, so they keep going.
Cyril Clarke