New study offers answers for why tropical birds are more colorful
2022-06-08 10:31
“The closer one gets to the tropics, the greater the variety of structures, graceful forms and color combinations.” Such were the words of German naturalist, geographer and explorer Alexander von Humboldt (1769-1859), one of the founders of the school of biogeography. During his extensive travels in the Americas in the early 19th century, Humboldt noticed […]
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