Feral donkeys are digging wells, giving water to wildlife
In the heart of the world’s deserts roam herds of feral donkeys and horses. And while they are generally considered a threat to the natural environment, they do have an amazing ability - they dig wells.
Image: 'Donkeys by the water post' by Hans Birger Nilsen / Wikimedia (CC BY-SA 2.0)
In the heart of the world’s deserts – some of the most expansive wild places left on Earth – roam herds of feral donkeys and horses. These are the descendants of a once-essential but now-obsolete labour force.
These wild animals are generally considered a threat to the natural environment, and have been the target of mass eradication and lethal control programs in Australia. However, as we show in a new research paper in Science, these animals do something amazing that has long been overlooked: they dig wells — or “ass holes”.
In fact, we found that ass holes in North America — where feral donkeys and horses are widespread — dramatically increased water availability in desert streams, particularly during the height of summer when temperatures reached near 50℃. At some sites, the wells were the only sources of water.
Continue reading on the UTS Newsroom: Feral donkeys are digging wells, giving water to wildlife
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