Octopuses and squids move by "jet propulsion", sucking water into a muscular sac in the mantle cavity surrounding their bodies and quickly expelling it out a narrow siphon.
(Octopuses and squids; move; by "jet propulsion) (Octopuses and squids; sucking; water; into a muscular sac in the mantle cavity) (the mantle cavity; surrounding; their bodies)
Octopuses and squids Octopuses and squids the mantle cavity
move sucking surrounding
by "jet propulsion
water into a muscular sac in the mantle cavity
their bodies