Darwin's finches


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Darwin's finches

pl n
(Animals) the finches of the subfamily Geospizinae of the Galapagos Islands, showing great variation in bill structure and feeding habits: provided Darwin with evidence to support his theory of evolution

Dar′win's finch′es


n. pl.
a group of Galapagos Island finches, esp. of the genus Geospiza, that were observed by Charles Darwin and provide a striking example of speciation.
[1945–50]
References in periodicals archive ?
They will be exploring aspects of evolution, from the peppered moth to Darwin's finches and how soil pollution can rapidly alter plants.
Much of their original work identified differences in the hardness of the seeds they eat, a story quite similar to that of Darwin's finches. Smith, who is a professor at UCLA as well as the founding director of the Center for Tropical Research, established a breeding colony of these finches to understand the inheritance of beak size.
According to artist Eloisa Guanlao, "Darwin's Finches are at once fossilized records and a critical examination of the myopia of nineteenth century positivist science that endures today." The wet collodion glass ambrotypes depict images of "stuffed" birds endemic to the southeast region of the United States.
The Big Bird population belongs to a group of finch species are collectively known as Darwin's finches and helped Darwin to uncover the process of evolution by natural selection
Which islands are home to giant tortoises and Darwin's finches? 10.
The 13 Galapagos species of Darwin's Finches manifest various degrees of evolution upon their beak, having different shapes and sizes for each species in order to gobble different types of foods (hence evolution):
Natural selection can sometimes work one gene at time, a new study of Darwin's finches suggests.
40 Years of Evolution: Darwin's Finches on Daphne Major Island
During and after completing his undergraduate degree in 1933, he took part in several ornithological expeditions; he became a schoolmaster; he next enjoyed a career-changing four months on the Galapagos Islands in 1938-1939, writing a much-quoted book on Darwin's Finches from his work there.
Another example are Darwin's finches, whose beaks evolved over millions of years with changes in birdsong, an important mating signal, and thus contributed to the rise of new and distinct finch species.
To explore the rugged volcanic terrain and see marine iguanas, giant tortoises, Darwin's finches and other marvels of nature - it was like my illustrated Origin of Species come to fife, It was an awe-inspiring experience to stand on the beach where Darwin first made landfall in the Galapagos.
Whether it's Darwin's finches, Lake Malawi's cichlids or Australia's marsupials, they all have one thing in common--they have diversified to suit their environments.