a class of animals to which humans, cows, lions, etc. belong, have warm blood, fur or hair and typically produce milk to feed their young

哺乳類 (ほにゅうるい), 哺乳動物 (ほにゅうどうぶつ)
any cold-blooded animal with the ability to live both on land and in water, such as toads, frogs, etc.

両生類(りょうせいるい), 両生動物(りょうせいどうぶつ)
any mammal that lays eggs and is only found in Australia, such as platypus

単孔類 (たんこうるい), モノトレーム
any of the order of mammals that carry their young babies in a pouch, such as kangaroos, found either in Australia or Americas

有袋類, マルスピアル
a class of terrestrial arthropods that breathe air and have four pairs of limbs, such as spiders, scorpions, etc.

クモ類, 節足動物の一群
a small creature such as a bee or ant that has six legs, and generally one or two pairs of wings

昆虫(こんちゅう), 虫(むし)
an animal with a beak, wings, and feathers that is usually capable of flying

鳥(とり), バード
an animal with a tail, gills and fins that lives in water

魚(さかな), フィッシュ
a class of animals to which crocodiles, lizards, etc. belong, characterized by having cold blood and scaly skin

爬虫類 (はちゅうるい), 爬虫 (はちゅう)
any small mammal with a pair of strong front teeth, such as mice, hamsters, rats, etc.

齧歯類(げっしるい), ネズミ類(ねずみるい)
any of the mammals that are categorized by thick skin and large hooves, such as elephants, rhinoceroses and hippopotami

厚皮動物(あつひどうぶつ), 皮膚厚い動物(ひふあついどうぶつ)
any bottom-dwelling marine fish with a flat body, a color similar to the seabed and both eyes on the upper side of the body

ヒラメ, カレイ
an aquatic animal that feeds at the bottom of a lake, river, etc.

底生生物(ていせいせいぶつ), ボトムフィーダー
a bird, such as an eagle or a hawk, that feeds on animal flesh

猛禽類(もうきんるい), 肉食鳥(にくしょくちょう)
a strong mammal used for carrying heavy loads, also known as a beast of burden

荷役用動物, 荷物運搬動物
an animal that feeds on the flesh of other animals

肉食動物 (にくしょくどうぶつ), 肉食性の動物 (にくしょくせいのどうぶつ)
any animal that only feeds on plants

草食動物 (そうしょくどうぶつ), 草食性の動物 (そうしょくせいのどうぶつ)
an animal or person that feeds on a wide range of both plants and meat

雑食動物 (ざっしょくどうぶつ), 雑食者 (ざっしょくしゃ)
an animal that primarily feeds on insects or other small invertebrates

昆虫食(こんちゅうしょく), 虫食(むししょく)
any tropical bird, the male of which is colorful and displays unique courtship skills, originated in Papua New Guinea and Australia

極楽鳥 (ごくらくちょう), paradiseflies (パラダイスバード)
any bird that migrates regularly from a region to another in different seasons of the year
small animals or insects that are believed to be destructive and are difficult to handle when they appear in a considerable number

害獣, 有害生物
any animal that lives by hunting and eating other animals

捕食者 (ほしょくしゃ), 肉食動物 (にくしょくどうぶつ)
an invertebrate animal with a segmented body and a chitinous exoskeleton, such as a spider, crab, etc.

節足動物 (せっそくどうぶつ), 甲殻類 (こうかくるい)
species that do not possess or cannot develop a spinal column, such as an arthropod, mollusk, etc.

無脊椎動物(むせきついどうぶつ), 無脊椎生物(むせきついせいぶつ)
a large group of animals characterized by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes

脊椎動物 (せきついどうぶつ), 脊椎生物 (せきついせいぶつ)
turkeys, chickens, geese, ducks, etc. that are kept for their eggs and meat

家禽(かきん), 鶏肉(けいにく)
(of wild animals) living by preying on other animals, especially live animals

捕食性の, 肉食の
a domesticated bird that is particularly kept for its meat and eggs

家禽(かきん), 鳥(とり)
a group of mammals, including cows, buffalo, bison, and antelopes, that are characterized by cloven hooves and ruminant digestion

ウシ科の, 反芻の
a quadruped mammal with a slender build and curved horns that is native to Africa or Eurasia

アンテロープ, 羚羊(れいよう)
any mammalian animal that belongs to the same group as humans, such as monkeys, apes, lemurs, etc.

霊長類(れいちょうるい), プライメート
a quadruped mammal that is herbivorous and has a complex digestive system from which it can bring the food back to its mouth and chew it again

反芻動物(はんすうどうぶつ), 反芻類(はんすうるい)
an organism, typically an insect or a tick, that transmits a pathogen or parasite from one host to another

ベクター, 媒介生物
a domestic animal that is lost, abandoned or wandering without an owner

迷い犬 (まよいぬ), 迷い猫 (まよいねこ)
a type of marine invertebrate that can change its shape and form through a process called polymorphism

多形性生物(たけいせいせいぶつ), ポリモルフ
an animal, typically an insect or a bird, that transfers pollen from one flower to another

花粉媒介者(かふんばいかいしゃ), 受粉者(じゅふんしゃ)
any invertebrate that lives in aquatic or damp habitats and has a soft unsegmented body, often covered with a shell

軟体動物(なんたいどうぶつ), 貝類(ばいるい)
a type of mollusk with a single, usually spirally coiled shell, a muscular foot, and a head with sensory tentacles and a mouth

腹足類(はらあしるい), カタツムリ(海のカタツムリも含む)
a fish that can not survive in salty waters and usually lives in lakes or rivers

淡水魚(あんすいぎょ), 淡水の魚(あんすいのさかな)
a fish that can survive in salty water and lives in oceans, also known as marine fish

塩水魚, 海水魚
