a hole that an animal digs in the ground to use as a shelter
洞穴, 地洞
a member of the dog family, including domestic dogs, wolves, foxes, and related animals
犬, 狗
a marine mammal that belongs to the group known as Cetacea, which comprises whales, dolphins, and porpoises
鲸目动物, 属于鲸目海洋哺乳动物
all the young of a bird hatched at the same time, or the young of an animal cared for together
一窝, 幼雏
an animal that eats both plant and animal matter
杂食动物, 全食性动物
a long, pointed tooth found in carnivorous animals, used for biting, gripping, and tearing flesh
尖牙, 獠牙
any of the sharp curved organs of an arthropod or insect, such as a crab, lobster, etc.
钳子, 螯
the skin of an animal with the fur, wool, or hair still covering it
毛皮, 皮
a large number of fish swimming together
鱼群, 群
the animals of a particular geological period or region
动物群, 动物
(of an animal) active during the twilight hours of dawn and dusk
黄昏的, 晨昏的
relating to or denoting animals that regulate their body temperature by external sources, such as the surrounding environment
外温的, 冷血的
having characteristics, appearance, or behavior similar to a horse
马似的, 马特征的
producing eggs that develop and hatch outside the body
卵生的, 产卵的
(of animals) adapted to or living high in trees, rather than on the ground
树栖的, 生活在树上的
feeding primarily on fish
食鱼的, 主要以鱼为食的
of or relating to monkeys or apes
猿的, 类猿的
brought from a wild state under human control or accustomed to humans
驯服的, 温顺的
related to or living on land, rather than in the sea or air
陆地的, 陆生的
relating to or characteristic of cows or cattle
牛的, 与牛有关的
relating to or characteristic of birds
鸟类的, 与鸟类有关的
(of animals or organisms) primarily active during the night
夜行性的
primarily active or occurring during the daytime
昼行性的, 主要在白天活动的
feeding on or adapted to a diet that consists primarily or exclusively of insects
食虫的, 以昆虫为食的
to blend in with the surroundings to avoid being seen or detected
伪装, 融入
