Some lizards swim through sand as though it were water.pdf - Some lizards swim through sand as though it were water

Some lizards swim through sand as though it were water.pdf...

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economist.com Some lizards swim through sand as though it were water. Why? Oct 3rd 2019 4 minutes One reason, it turns out, is to keep parasites down A FICIONADOS OF “Dune”, Frank Herbert’s novel about a planet covered by Sahara-like desert, will be familiar with the idea of animals that swim through sand. Giant worms which do just that are a feature of the book. Back on Earth, though, there are sand-swimmers, too. And these ones are real. At least eight groups of lizards have a habit of diving headfirst into sand, if it is available, and making paddling motions with their limbs to carry Some lizards swim through sand as though it were water... about:reader?url=... 1 of 3 10/4/19, 9:39 AM
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them below, as if they were submerging themselves in a body of water. The question is, why? Obvious hypotheses include evading predators and controlling body temperature. However, Ken Toyama of the University of Toronto has a third: that the animals are ridding themselves of skin parasites. And he has data to back his theory up.
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