the number of eggs or offspring produced by a single reproductive effort, typically by a bird, reptile, or insect
离合器大小
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
哺乳动物
any cold-blooded animal with the ability to live both on land and in water, such as toads, frogs, etc.
两栖类
any small mammal with a pair of strong front teeth, such as mice, hamsters, rats, etc.
啮齿动物
any mammalian animal that belongs to the same group as humans, such as monkeys, apes, lemurs, etc.
猭
a class of animals to which crocodiles, lizards, etc. belong, characterized by having cold blood and scaly skin
爬虫
a class of terrestrial arthropods that breathe air and have four pairs of limbs, such as spiders, scorpions, etc.
蛛形纲动物
a hoofed mammal, typically herbivorous, which includes animals such as horses, cows, deer, and elephants
有蹄类动物
a type of moth belonging to the family Sphingidae, known for their rapid flight and ability to hover while feeding on nectar from flowers
鹰蛾
any long and cylindrical worm with a segmented body that is either parasitic or free-living
线虫
a type of shellfish that can be eaten both raw and cooked, some of which contain pearls inside
牡蛎
an invertebrate animal with a segmented body and a chitinous exoskeleton, such as a spider, crab, etc.
节肢动物
a large grasshopper that lives in hot countries and flies in large swarms, destroying crops
刺槐
a marine arthropod with an external shell that attaches itself to a surface and feeds on particles that are in the water
藤壶
a type of monkey that belongs to the Old World monkey family, characterized by their long tails, cheek pouches
猕
a member of the biological family Hominidae, which includes humans, their ancestors, and other great apes like chimpanzees, gorillas, and orangutans
原始人类
a small egg-laying mammal that is covered in spines, has a pointed snout and originates from Australia
针鼹
a semiaquatic rodent with a wide tail and strong teeth that builds dams across streams and is mainly found in the Northern hemisphere
海狸
describing characteristics or features that are similar to those of monkeys or apes
猿猴
a large, black-and-white marine mammal known for its social behavior, intelligence, and adaptability, found in oceans worldwide and known as an apex predator
逆戟鲸
any invertebrate that lives in aquatic or damp habitats and has a soft unsegmented body, often covered with a shell
软体动物
a mammal with claws that can't retract and often has a long snout, and often used for companionship, hunting, or guarding purposes
类似犬科动物的
a small ground-dwelling bird of passage with brownish plumage that has a short tail and is hunted by people
鹌鹑
a small marine animal that is covered with spines and has a round shell, harvested for food
海胆
a colorful bird species found in the Americas, known for its vibrant plumage, melodious songs, and important ecological role in seed dispersal
唐纳雀
a small mammal belonging to the weasel family with black and white stripes that can produce a strong unpleasant smell when attacked, native to North America
臭鼬
a sharp, stiff, hollow spine found on the body of porcupines or hedgehogs, serving as a defensive mechanism against predators
鹅毛笔
a specialized caste of social insects, such as ants or termites, that are engorged with food and serve as living food storage units within the colony
充满
a large baleen whale characterized by its distinctive hump and long pectoral fins, known for breaching and singing during mating season
驼子
a long, tubular feeding organ found in many insects, such as butterflies, moths, and flies, which is used to suck up nectar, other liquids, or in some cases, blood
长鼻
the long and protruding facial part of an animal which comprises its nose and mouth, especially in a mammal
鼻子
the bivalve shell of a clam, characterized by two symmetrical halves that hinge together
翻盖式
any external body part that protrudes from an organism's main body, often used to describe limbs, antennae, or other structures
附加物
any of the various flexible limbs of an animal, especially an invertebrate, which enable it to move or hold things
触手
the posterior part of a fish or aquatic animal's body, composed of fins that provide propulsion and maneuverability
尾鳍
the biological ability of certain organisms to perceive and orient themselves based on the Earth's magnetic field
磁接收
the biological ability of certain animals to detect electrical fields in their environment to locate prey, navigate, and communicate
电接收
(of animals or birds) moving from one place to another, often with the changing seasons
迁徙的
relating to or characteristic of the larva stage, which is an early, immature form of an animal that undergoes metamorphosis
幼虫
a biological process in which an animal undergoes a significant change in form and structure during its life cycle, typically seen in insects, amphibians, and other animals
变态
a scientist who specializes in the study of birds, including their behavior, ecology, and evolution
鸟类学家