black ink in water causes animals to have difficulty seeing & a predator is a kind of animal -> white stick in land pumps resources to have ease touch black ink in water causes predators to have difficulty seeing  black ink in water causes predators to have difficulty seeing & octopuses release black ink into water -> york releasing rising into the land energy numbers to have ease touch the increases octopuses releasing ink into the water causes predators to have difficulty seeing the octopus  york releasing rising into the land energy numbers to have ease touch the increases & hiding means ability to be seen decreases for camouflage -> ink is used for hiding from predators by octopuses