On Charles Darwin"s birthday, we celebrate Darwin Day—and, of course, there"s no better place to do that than the Galápagos Islands. Darwin is best known for his theory of evolution by natural selection, which he published in his 1859 book "On the Origin of Species." During his travels to the Galápagos Islands years earlier, Darwin observed creatures that were similar from island to island but had slightly different adaptations to better survive in their specific environments. This became a key component of his research. The islands are home to thousands of unique species, including this Pinzon Island tortoise, which we see hatching from an egg at the Charles Darwin Research Station.
Wake up, it s Darwin Day
Today in History
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Mack Arch Rock
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Brown pelican, San Diego, California
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A lunar lantern celebration
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Seville celebrates first world tour
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Monument Valley, Navajo Nation, Arizona
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Loud waters
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National Take the Stairs Day
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Sea Otter Awareness Week
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A different kind of dive
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Noctilucent clouds
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China s colorful terraced pools
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Short-beaked echidna, Adelaide Hills, Australia
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World Rivers Day
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Celebrating whales—and a whale of a tale
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Tide pools in La Jolla, California
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Quiver trees in Namibia
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National Pumpkin Day
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Labor Day
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Martin Luther King Jr. Day
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One for the books
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That bill s just not going to fit
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Big Bend National Park turns 78
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Great Smoky Mountains National Park, Tennessee
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Limpets at low tide on the coast of Praia da Ursa, Portugal
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White Sands National Park turns 90
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Earthrise on Moon Day
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Under Parisian skies
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Raise your hand for Teacher Appreciation Day
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Via Krupp, Capri, Italy
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Celebrating 30 years of eye-opening images
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