Assertion: earthworm | /r/AtLocation | the surface
Facets:
value: during rain
type: TEMPORAL
value: in order to mate
type: PURPOSE
value: in large numbers
type: MANNER
value: to get the oxygen
type: PURPOSE
value: after a rainstorm
type: TEMPORAL
Source sentences:
text: You often see earthworms come to the surface in large numbers after a rainstorm.
text: The first is that the waterlogged soil has insufficient oxygen for the worms, therefore, earthworms come to the surface to get the oxygen they need and breathe more easily.
text: Earthworms may also come to the surface during rain in order to mate, and therefore, an alternative hypothesis concerning "stranding" behavior is that as some species (notably Lumbricus terrestris) come to the surface to mate, they may become stranded.
text: The earthworm might also be coming to the surface to move more quickly to colonize new ground or to forage for food during weather when predators are less likely to be out.
text: Nobody is sure why earthworms come to the surface in the rain, but there are two ideas.