Feral horses, donkeys dig desert holes to hydrate biodiversity Nathan Howes Wednesday, May 5th 2021, 10:06 pm - The wild donkeys and horses, hazards to local biodiversity, can actually boost desert ecosystems by digging equid wells and providing much-needed water. When it comes to finding water and staying hydrated in desert environments, animals will take all the help they can get. This includes from other wildlife, even ones that pose threats to natural ecosystems. Researchers have found that feral donkeys and horses have been digging equid wells in search of water, not only for themselves, but for other species, too. The findings of the study were recently published in