This desert oasis is a biological wonderland. Trump’s border wall threatens to destroy it

From the publisher

Quitobaquito Springs in south-west Arizona has been called a biological wonderland with few equals. The springs are an oasis in the vast Sonoran desert along the US-Mexico border, held sacred by the O’odham people, who call it A’al Vaipia. Here, water flows out of an aquifer at the bottom of a hill, runs along a short concrete channel and collects in a pond. The pond is home to Sonoyta pupfish, which are small and silvery, with upturned jaws. In the channel are found small mollusks the size of chia seeds known as springsnails. This is the only place on Earth where these two species live in the wild. It’s also…

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