place where animals are kept in enclosures for public viewing, research, or education; zoological garden

wild animal; animals that live or grow in the wild without being raised or bred by humans

The highest class of vertebrates, characterized by the use of milk from mammary glands to feed their young, hair or fur, and a constant body temperature.

The state of being animate; the quality of being an animal or having animal characteristics.

A class of cold-blooded vertebrate animals characterized by scaly skin and breathing through lungs, such as lizards, snakes, and turtles; also called [[爬虫|爬蟲|pa2 chong2]] or [[爬虫类动物|爬蟲類動物|pa2 chong2 lei4 dong4 wu4]].

An open-air zoo where animals are kept in large natural enclosures rather than in cages.

an animal whose body temperature changes based on the environment; also known as a [[变温动物|變溫動物|bian4 wen1 dong4 wu4]]

Any animal of the subphylum Vertebrata, characterized by having a backbone and a highly developed nervous system; includes fish, amphibians, reptiles, birds, and mammals.

zoology; the branch of biology that studies the life and development of animals

An animal that feeds primarily on plants, such as cattle, sheep, or rabbits.

amphibious animal; a class of cold-blooded vertebrates that spend part of their life cycle in water and part on land

animal that feeds on flesh; meat-eater

the biological kingdom comprising all living or extinct animals

mollusk; invertebrate animal with a soft, unsegmented body, such as a snail, clam, or squid

Oil or fat extracted from animals, such as lard or butter, used for food, lubrication, or industrial raw materials

Single-celled eukaryotic organisms that are the most primitive form of animal-like life, typically living in water or as parasites in other organisms

Any animal that does not have a backbone or spinal column; this group makes up the vast majority of all animal species.

herbivore; herbivorous animal

Any of a large group of invertebrate animals with segmented bodies and jointed legs, including insects, spiders, and crustaceans

An animal that maintains a constant body temperature regardless of its environment; also known as [[恒温动物|恆溫動物|heng2 wen1 dong4 wu4]] or [[常温动物|常溫動物|chang2 wen1 dong4 wu4]].

Any animal that brings food back up from its stomach to chew it again, such as cows, sheep, or deer

Animal belonging to the phylum Chordata, characterized by having a notochord at some stage of development; includes tunicates, lancelets, and all vertebrates.

A type of simple invertebrate animal with radial symmetry and tentacles, including jellyfish, coral, and sea anemones. These animals have a body wall made of two layers and a central digestive cavity. In modern biology, these are often reclassified into [[刺胞动物|刺胞動物|ci4 bao1 dong4 wu4]] and [[栉水母动物|櫛水母動物|zhi4 shui3 mu3 dong4 wu4]].

A phylum of marine invertebrates, such as sea urchins, sea cucumbers, and starfish, typically characterized by a radial symmetry and a hard, spiny skin or shell

any of a phylum of invertebrate worms with segmented bodies, such as leeches or earthworms

An animal that maintains a relatively stable internal body temperature regardless of environmental changes; includes birds and mammals.

warm-blooded animal; a common name for a [[恒温动物|恆溫動物|heng2 wen1 dong4 wu4]]

rodent; any animal of the order Rodentia

a jawless fish such as a lamprey or hagfish, belonging to the class Cyclostomata

a member of the phylum of invertebrate animals characterized by long cylindrical bodies and commonly found in soil or as parasites

the Porifera phylum of animals, commonly known as sponges

the zoological phylum containing the sponges

A class of animals with many legs, such as centipedes and millipedes.

An animal that lives in or on another animal to obtain its nutrients; a parasitic animal.

An animal that maintains a constant body temperature through internal metabolic processes, such as mammals and birds

beasts of burden or draft animals, such as oxen, horses, or donkeys, that are used for labor

a flatworm; any member of the phylum Platyhelminthes

hoofed animals; any mammal with hooves

omnivore; omnivorous animal

comb jelly; any of various marine animals in the phylum Ctenophora, characterized by groups of cilia they use for swimming

The most primitive type of multicellular animal, typically found in shallow waters; poriferan

reptile; any animal of the class Reptilia

Any member of a class of cold-blooded vertebrate animals that includes snakes, lizards, crocodiles, and turtles

Annelida, the phylum of annelid worms

Any of a large group of arthropods, typically with a hard shell and two pairs of antennae, such as shrimp and crabs

the subkingdom of animals excluding sponges; eumetazoa

Any mammal that enters its breeding season in the autumn as the hours of daylight decrease; examples include sheep, goats, and deer.deer

animals used in blood sports (e.g. cockfighting, bullfighting)