World’s Smallest Bird Lays Its Eggs in a Nest the Size of a Quarter

Only slightly larger that the insect it’s named after, the Bee Hummingbird weighs no more than two grams and lays eggs roughly the size of coffee beans. It is officially the world’s tiniest bird.

Found only in Cuba, the Bee Hummingbird is extremely small even for a hummingbird, so much so that people often mistake it for an actual bee when they see it hovering over flowers. But this tiny flier not only looks like an insect, it also competes against them for resources. It is the result of a phenomenon scientists call “island dwarfism”, where certain species have problems competing against larger species for resources, so they get smaller and smaller over evolutionary time to avoid running out of food and start competing against other categories of organisms.

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