Chinese 哺乳动物 Cited by user InternetArchiveBot on 21 Aug 2022 哺乳动物或哺乳类是对脊椎动物下哺乳纲(学名:)动物的统称. 与同属羊膜动物、在石炭紀(約3億年前)分化的爬行類、鸟|鳥類不同的是,哺乳类具有新皮质、毛皮、三個听小骨和乳腺,雌性还會用乳腺分泌乳汁餵養幼崽.
English Multi-male group Cited by user Ktnnguyen on 25 Oct 2021 Basic requirements of individual primates include obtaining food, avoiding predators, and reproducing.
English Dog behavior Cited by user Moneytrees on 13 Oct 2020 Dog behavior is the internally coordinated responses of individuals or groups of domestic dogs to internal and external stimuli.