Earthworms don’t have much of a brain, so
they live by simple rules. One rule is “stay
away from dry.” This is a pretty good rule most of
the time. It keeps them in moist dirt so they
don’t dry out. That’s why you don’t usually see
worms above the dirt. When it rains, their rule
doesn’t keep them underground anymore. If they
go back down into the dirt, they are fine. If they
are on a hard surface, like a sidewalk, they may
be in trouble when the water dries up.
Can you think of any other rules an
earthworm should have to keep it safe?
You may want to study animal behavior.
Thanks for asking,
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