Creature eating plant

What swamp plant eats living creatures? Materials: Jar, pond water, bladderwort plant. Process: Fill a clear jar with pond water and add a bladderwort plant.

Result: A bladderwort plant has no roots. Instead, look closely and you will see on the underwater branches of the plant are tiny sacks. Each sack has a tiny door and when a small creature bumps into the sack, the sack opens and sucks in the creature. The plant derives nourishment from the captured living creatures.