Peter and Rosemary Grant
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Peter Raymond Grant and Barbara Rosemary Grant are a British married couple who are evolutionary biologists at Princeton University. Each currently holds the position of emeritus professor. They are k
Dr. Peter Grant measures bill length
Rosemary Grant with hummingbird
Española cactus finch
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The Española cactus finch is a species of bird in the tanager family Thraupidae. It is one of Darwin's finches, and is endemic to the Galápagos islands, where it is restricted to Española, Genovesa, a
Peter and Rosemary Grant
…However, in 2015, whole genome analysis linked its descent to a bird that originated on Española Island, more than 100 kilometers from Daphne Major, the Española cactus finch (G. conirostris). Descendants of G. conirostris and local finches (G. fortis) have become a distinct species, the first example of speciation to be…
Geospiza conirostris Espanola Island, Galapagos, Ecuador 8
Female on Española
Male on Española