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A fish (pl.: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits. Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and ...
FISH翻译：鱼;鱼肉, 搜查, 摸找，翻找，搜寻, 拐弯抹角地引出；间接探听, 动物, 捕（鱼）;钓（鱼）。. 了解更多。.
4 days ago · Fish, any of approximately 34,000 species of vertebrate animals (phylum Chordata) found in the fresh and salt waters of the world. Living species range from the primitive jawless lampreys and hagfishes through the cartilaginous sharks, skates, and rays to the abundant and diverse bony fishes.
All fish share two traits: they live in water and they have a backbone—they are vertebrates. Apart from these similarities, however, many of the species in this group differ markedly from one ...
Jan 3, 2023 · Instead, there are 3 main classes, groups, or types of fish: bony fish (Osteichthyes), jawless fish (Agnatha), and cartilaginous fish (Chondrichthyes). Fish are the most diverse group among vertebrates, with over 33,000 different types of fish species.
定義. 在 口语 中，为求简洁，“鱼类”一词不包括 四足动物 ，人们只把脊椎動物简单分為魚類（53%）、 鳥類 （18%）、 爬行類 （12%）、 哺乳類 （9%）、 兩棲類 （8%）五大類。. 以嚴謹的角度來講，所有 陆生 、 半水生 和 水生 的 四足动物 （两栖动物和 羊膜 ...
fish, Any of more than 30,000 species of predominantly cold-blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes through the cartilaginous shark s, skates, and ray s to the abundant and diverse bony fishes.
Fish are vertebrates (vertebrates have backbones) that live in water. They breathe using special organs called gills.
Feb 12, 2019 · Fish come in a wide variety of colors, shapes, and sizes - there's the largest fish, the 60+ foot long whale shark, popular seafood fish such as cod and tuna, and completely different-looking animals such as seahorses, sea dragons, trumpet fish, and pipefish. In all, about 20,000 species of marine fish have been identified.
Almost all natural bodies of water bear fish life, with the exception of very hot thermal ponds and extremely salt-alkaline lakes, such as the Dead Sea in Asia and the Great Salt Lake in North America. Although most fish species are cold-blooded, one especially contrarian species, the opah (Lampris guttatus), is warm-blooded.
