ナショナルジオグラフィックのインスタグラム(natgeo) - 2月18日 09時27分

Photo by @ronan_donovan | What does this South American bird remind you of? This is a lesser rhea, a close relative of the species in question. It was only a hundred years ago that Alfred Wegener published his theory on continental drift and scientists began to unravel the logic behind plate tectonics, proving the existence of the super continents known as Pangea and later, Gondwanaland. Gondwanaland existed about 200 million years ago, before plate tectonics separated the the South American and African continents. One of the main drivers of speciation, or the creation of new species, is separation. The result of about a hundred million years of separation is ample time for one species to split in two, as is the case between the lesser rhea and which species? Hope on over to @ronan_donovan to find out the answer.

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