leafy sea dragon: found australia. they have leaf- like bodies. they get to about 45 cm. they live in seaweed beds. they eat seweed.
cuttle fish: they have 8 arms and 2 suckered tentacles. change color quickly. they get up to 80 cm. live in tropical waters. eat small fish.
colossal squid: they weigh 1,000 pounds and 35 feet. they have sharp tentacles.
hatchetfish: small fish. thin and silvery with big black eyes. they hind in the dark.