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Hello Summer!
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No, they're not a cocktail. But they are an important clue to evolution that Darwin, though no fault of his own, missed on his visit to the Galapagos.
http://d.yimg.com/us.yimg.com/p/afp/20090106/capt.cps.orx14.060109030206.photo00.photo.default-512x348.jpg?x=213&y=145&xc=1&yc=1&wc=408&hc=278&q=100&sig=zocFJ3y7Tlv0N6OZzIRCOQ--
Full article here. Handsome devils, ain't they?Pink iguanas unknown to Charles Darwin during his visits to the Galapagos islands may provide evidence of species divergence far earlier than the English naturalist's famous finches, researchers said Monday. The findings also for the first time describe the black-striped reptiles -- first seen in 1986 and only a few more times since -- as a new species, said Gabriele Gentile of the University Tor Vergata in Rome, who led the study. They also add to understanding of the evolution of species on the remote islands, which remain much as they were millions of years ago and which inspired Darwin's theory of evolution by natural selection. Many of its species are found nowhere else.
"Despite the attention given to them, the Galapagos have not yet finished offering evolutionary novelties," Gentile and colleagues wrote in the Proceedings of the National Academy of Sciences. "So far, this species is the only evidence of ancient diversification along the Galapagos land iguana lineage and documents one of the oldest events of divergence ever recorded in the Galapagos."
...Darwin did not visit areas inhabited by the pink land iguana and so missed the species, whose existence suggests diversification in the Galapagos happened some five million years ago. That is far earlier than attributed to most other Galapagos species like the finches, Gentile said. "We were not the first to see this form but we were the first to say what it is and that it is a new species," Gentile said in a telephone interview.
A genetic analysis showed that the pink reptile likely originated in the Galapagos and split from other iguana populations some five million years ago when the archipelago was still forming, the researchers said. The creatures only seem to live near a single volcano at most 350,000 years old, which means the reptiles that grow longer than a meter and up to 12 kilograms must have at one time existed elsewhere in the Galapagos, Gentile said. The researchers documented fewer than 40 of the iguanas over two years and Gentile said conservation efforts and funds are urgently needed to keep the species from dying off. "We think the population is very small and there is a great risk of extinction," Gentile said.
http://d.yimg.com/us.yimg.com/p/afp/20090106/capt.cps.orx14.060109030206.photo00.photo.default-512x348.jpg?x=213&y=145&xc=1&yc=1&wc=408&hc=278&q=100&sig=zocFJ3y7Tlv0N6OZzIRCOQ--
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