17:22
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For a long time people thought that living organisms were created in ‘centres of origin’ or creation spots, from which they moved towards the most diverse areas of the planet. In this way, people explained why kangaroos exist only in Australia, why lions are exclusive of Africa or why the highest diversity of pines is found in North America. Nonetheless, we now understand that species originate in a very different way. Charles Darwin, one of the most prominent naturalists, was interested in understanding how species originated. The presence of ostriches in Africa and that of other very similar birds in South America, the rheas, drew his attention....
