Natural selection at its most powerful winnowed certain finches harshly during a severe drought in 1977. That year, the vegetation withered. Seeds of all kinds were scarce. The small, soft ones ...
There are now at least 13 species of finches on the Galapagos Islands, each filling a different niche on different islands. All of them evolved from one ancestral species, which colonized the ...
Dr Alex Bond, Senior Curator of Birds at the Museum explains the most extreme feeding strategy of all of Darwin's finches. Nazca boobies (Sula granti) are abundant on Wolf Island (also known as Wenman ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results