a mammal with claws that can't retract and often has a long snout, and often used for companionship, hunting, or guarding purposes
犬, 狗
each of the curved pointy teeth of some animals such as elephants, boars, etc., especially one that stands out from the closed mouth
獠牙, 牙齒
the long and protruding facial part of an animal which comprises its nose and mouth, especially in a mammal
嗅觉器, 鼻口
one of the two long and sharp teeth that some animals such as dogs, wolfs, or snakes have
獠牙, 尖牙
small animals or insects that are believed to be destructive and are difficult to handle when they appear in a considerable number
害虫, 有害动物
a prominent feature exhibited by some birds on their heads, consisting of feathers, fur, or skin
冠, 羽毛
to keep an egg in a favorable condition to help it develop until it hatches
孵化, 保温
a bird that is too young to leave the nest built by its parents, especially one that has not yet learned how to fly
雏鸟, 幼鸟
a marine invertebrate with a body full of holes through which water can circulate and nutrients can be absorbed
海绵, 海绵动物
a class of terrestrial arthropods that breathe air and have four pairs of limbs, such as spiders, scorpions, etc.
蛛形纲
a parasitic flatworm that is shaped like a ribbon and lives in the intestines of mammals
绦虫, 带虫
a small wingless insect that is silvery and nocturnal, which feeds on paper products or clothing
银鱼, 银虫
an invertebrate animal with a segmented body and a chitinous exoskeleton, such as a spider, crab, etc.
节肢动物
the stage of the metamorphosis that comes between the larval and adult stages of a moth or butterfly
蛹
a silky covering that the larvae of some insects make around themselves during metamorphosis
茧, 蛹
a young form of an insect or an animal that has come out of the egg but has not yet developed into an adult
幼虫
the hard outer covering that supports the body of an animal, such as an arthropod
外骨骼
a small parasitic insect that lives and feeds on the body of warm-blooded animals
虱子, 寄生虫
any invertebrate that lives in aquatic or damp habitats and has a soft unsegmented body, often covered with a shell
软体动物, 双壳类
a parasitic or predatory worm of the annelid family that lives in freshwaters and drinks blood by attaching itself to its prey
水蛭, leech