ログイン
a marine organism that lives in warm waters and forms clusters of polyps, which secrete calcium carbonate to build a hard skeleton
サンゴ
a marine creature with eight arms and two longer tentacles and an internal flat shell, which produces an ink-like substance when in danger
コウイカ
a sea creature that has a bell-shaped body, which is gelatinous and transparent, long thin tentacles and a poisonous sting
クラゲ
a large marine creature like jellyfish that lives in tropical and subtropical waters and has a poisonous sting
ポルトガルの軍艦
a sea creature with eight, long arms and a soft round body with no internal shell
タコ
the microscopic organisms floating in the sea or fresh water on which larger animals feed
プランクトン
a small and simple sea creature with a hollow cylindrical body and a ring of tentacles surrounding the mouth
ポリプ
a sea polyp that is predatory and resembles a flower, having bright colors
海ほうずき
a small marine fish with an upright posture, a horse-like head and a curled tail
タツノオトシゴ
a marine invertebrate with a body full of holes through which water can circulate and nutrients can be absorbed
スポンジ
a marine creature that can change color and has a long soft body with ten tentacles helping it swim very fast
イカ
an echinoderm that has five arms arranged in the form of a star and feeds on mollusks
ヒトデ
microscopic animals that float in bodies of water, serving as an important food source for many aquatic organisms
動物プランクトン
a small marine animal that is covered with spines and has a round shell, harvested for food
ウニ
an invertebrate with a wormlike body that is considered a marine creature and lives on seabed, with tentacles around the mouth
ウニ
