Half of the world’s Blue-Footed Boobies population live in the Galapagos archipelago. Female boobies lay between two to three eggs a year, creating high competition between the offspring. Blue-footed booby chicks practice facultative siblicide, opting to cause the death of a sibling based on environmental conditions and resulting in one survivor that portrays natural selection in every generation. Both parents take care of the nest for about 45 days and feed the chicks together, by regurgitation for approximate two months.
December 28th, 2021
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