Worms will then move up to eat from the surface as this is their natural behavior pattern.
(Worms; will move; up; to eat from the surface as this is their natural behavior pattern; T:then) (Worms; to eat; ) (this; is; their natural behavior pattern)
Worms Worms this
will move to eat is
up to eat from the surface as this is their natural behavior pattern T:then
their natural behavior pattern