![]() ![]() "It gives them an opportunity to move greater distances across the soil surface than they could do through soil," said Dr. ![]() Soil experts now think earthworms surface during rain storms for migration purposes. Chris Lowe, Lecturer in Waste and Environmental Management, University of Central Lancashire in Preston, United Kingdom.Įarthworms are unable to drown like a human would, and they can even survive several days fully submerged in water. "This is not true as earthworms breathe through their skins and actually require moisture in the soil to do so," said Dr. Researchers hypothesize several reasons why heavy rain storms bring crawlers out of their soil homes.įor years scientists seemed to think the only reason earthworms came to the soil surface after a good rain was to prevent drowning in their water-filled burrows. Earthworms laying on sidewalks or streets after a heavy spring rain has become commonplace, but why do they do this. ![]()
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