The lower latitudes play host to a far greater diversity of species than those closer to the poles. Look at the birds, for example, and you'll see an obvious pattern. In the nineteenth century, european naturalists like alexander von humboldt and charles darwin travelled to the tropics. They consistently noted in their journals how colorful nature was compared to back home.
Luiz Inácio Lula da Silva left office with a sky-high approval rating, having raised millions from poverty—but was then convicted of corruption. Now he wants his old job back. Forced labour in Uzbekistan’s cotton fields, once widespread, is swiftly vanishing. And an old hypothesis confirmed: birds get more colourful the closer they live to the equator.
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