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Why do earthworms come to the surface after a heavy rain?

April 26, 2017earthworms heavy Mathematics rain zoology

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Why do earthworms come to the surface after a heavy rain?

2 Answers

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kfarr37 kfarr37 Posted

So they can mate – Check out Why do Earthworms come out in the rain?

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So they don’t drown. They come up to get oxygen, which they absorb through their skin, so too much water = no oxygen = drowning. And yeah, most of them die on the sidewalk anyway, but the lucky ones live and burrow back in when the ground dries out a bit.