a hole that an animal digs in the ground to use as a shelter

穴, 巣穴
a member of the dog family, including domestic dogs, wolves, foxes, and related animals

犬, イヌ科の動物
a marine mammal that belongs to the group known as Cetacea, which comprises whales, dolphins, and porpoises

クジラ目, クジラ目に属する海洋哺乳類
all the young of a bird hatched at the same time, or the young of an animal cared for together

ひな, 子孫
an animal that eats both plant and animal matter

雑食動物, オムニボア
a long, pointed tooth found in carnivorous animals, used for biting, gripping, and tearing flesh

牙, 鋭い歯
any of the sharp curved organs of an arthropod or insect, such as a crab, lobster, etc.

はさみ, つめ
the skin of an animal with the fur, wool, or hair still covering it

毛皮, 皮
a large number of fish swimming together

群れ, 魚群
the animals of a particular geological period or region

動物相, 動物
(of an animal) active during the twilight hours of dawn and dusk

薄明薄暮性の, 黄昏時の
relating to or denoting animals that regulate their body temperature by external sources, such as the surrounding environment

外温性の, 冷血の
having characteristics, appearance, or behavior similar to a horse

馬のような, 馬の特徴を持つ
producing eggs that develop and hatch outside the body

卵生の, 卵を産む
(of animals) adapted to or living high in trees, rather than on the ground

樹上性の, 木に住む
feeding primarily on fish

魚食性の, 主に魚を食べる
of or relating to monkeys or apes

猿の, 猿のような
brought from a wild state under human control or accustomed to humans

飼いならされた, 従順な
related to or living on land, rather than in the sea or air

陸生の, 陸上の
relating to or characteristic of cows or cattle

牛の, 牛に関連する
relating to or characteristic of birds

鳥の, 鳥類に関する
(of animals or organisms) primarily active during the night

夜行性の
primarily active or occurring during the daytime

昼行性の, 日中に活動する
feeding on or adapted to a diet that consists primarily or exclusively of insects

昆虫食性の, 昆虫を主食とする
to blend in with the surroundings to avoid being seen or detected

擬態する, 溶け込む
