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
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哺乳類
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any cold-blooded animal with the ability to live both on land and in water, such as toads, frogs, etc.
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両生類
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any of the order of mammals that carry their young babies in a pouch, such as kangaroos, found either in Australia or Americas
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有袋類, マースピアル
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a class of terrestrial arthropods that breathe air and have four pairs of limbs, such as spiders, scorpions, etc.
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節足動物
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a small creature such as a bee or ant that has six legs, and generally one or two pairs of wings
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昆虫
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a class of animals to which crocodiles, lizards, etc. belong, characterized by having cold blood and scaly skin
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爬虫類
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any small mammal with a pair of strong front teeth, such as mice, hamsters, rats, etc.
![齧歯類, げっ歯類](https://api.langeek.co/v1/assets/flags/ja.png)
齧歯類, げっ歯類
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any of the mammals that are categorized by thick skin and large hooves, such as elephants, rhinoceroses and hippopotami
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厚皮類
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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
![平たい魚, 底に住む魚](https://api.langeek.co/v1/assets/flags/ja.png)
平たい魚, 底に住む魚
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a strong mammal used for carrying heavy loads, also known as a beast of burden
![荷物運搬用の動物, 荷物持ちの獣](https://api.langeek.co/v1/assets/flags/ja.png)
荷物運搬用の動物, 荷物持ちの獣
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any tropical bird, the male of which is colorful and displays unique courtship skills, originated in Papua New Guinea and Australia
![極楽鳥, ゴクラクチョウ](https://api.langeek.co/v1/assets/flags/ja.png)
極楽鳥, ゴクラクチョウ
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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
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害虫, 有害動物
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an invertebrate animal with a segmented body and a chitinous exoskeleton, such as a spider, crab, etc.
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節足動物
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species that do not possess or cannot develop a spinal column, such as an arthropod, mollusk, etc.
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無脊椎動物, 無脊椎
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a large group of animals characterized by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes
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脊椎動物
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(of wild animals) living by preying on other animals, especially live animals
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捕食的な, 捕食者
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a group of mammals, including cows, buffalo, bison, and antelopes, that are characterized by cloven hooves and ruminant digestion
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ウシ科の, ウシ
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a quadruped mammal with a slender build and curved horns that is native to Africa or Eurasia
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アンテロープ
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any mammalian animal that belongs to the same group as humans, such as monkeys, apes, lemurs, etc.
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霊長類
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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
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反芻動物, 反刍動物
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an organism, typically an insect or a tick, that transmits a pathogen or parasite from one host to another
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ベクター
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a type of marine invertebrate that can change its shape and form through a process called polymorphism
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ポリモルフ
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an animal, typically an insect or a bird, that transfers pollen from one flower to another
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受粉者, 受粉動物
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any invertebrate that lives in aquatic or damp habitats and has a soft unsegmented body, often covered with a shell
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軟体動物, 二枚貝
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a type of mollusk with a single, usually spirally coiled shell, a muscular foot, and a head with sensory tentacles and a mouth
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腹足類
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a fish that can not survive in salty waters and usually lives in lakes or rivers
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淡水魚, 塩水に生きられない魚
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a fish that can survive in salty water and lives in oceans, also known as marine fish
![塩水魚, 海水魚](https://api.langeek.co/v1/assets/flags/ja.png)
塩水魚, 海水魚
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