David Lack Quotes About Beaks
We have collected for you the TOP of David Lack's best quotes about Beaks! Here are collected all the quotes about Beaks starting from the birthday of the – July 16, 1910! We hope you will be inspired to new achievements with our constantly updated collection of quotes. At the moment, this page contains 1 sayings of David Lack about Beaks. We will be happy if you share our collection of quotes with your friends on social networks!
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On consideration, it is not surprising that Darwin's finches should recognize their own kind primarily by beak characters. The beak is the only prominent specific distinction, and it features conspicuously both in attacking behaviour, when the birds face each other and grip beaks, and also in courtship, when food is passed from the beak of the male to the beak of the female. Hence though the beak differences are primarily correlated with differences in food, secondarily they serve as specific recognition marks, and the birds have evolved behaviour patterns to this end.
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