Mousedeer are the smallest members of the animal family that includes pigs, hippos, camels, deer, antelopes, sheep and goats.
有蹄类哺乳动物包括猪、河马、骆驼、鹿、羚羊、绵羊与山羊等,而鼠鹿是其中最小的一类。
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In the wide scheme of things, these behavioral deficits could, in the long term, undermine the ability of a species such as the deermouse to reproduce in the wild.