Cacti, iguanas and El Niño: How erratic weather is disturbing a fragile ecosystem on the Galápagos
The islands 1,000 kilometres off the coast of Ecuador have seven endemic genera, including lava cactus (Brachycereus ...
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Natural Selection in Real Time
The Grants study the evolution of Darwin's finches on the Galapagos Islands. The birds have been ... For example, the cactus finch has a long beak that reaches into blossoms, the ground finch ...