Peculiarities of the dancing mouse--Markings and method of keeping record of individuals--The dancer in China and Japan (Kishi, Mitsukuri, Hatai)-- Theories concerning the origin of the race: selectional breeding; the inheritance of an acquired character; mutation, inheritance, and selectional breeding; pathological changes; natural selection--Instances of the occurrence of dancers among other kinds of mice--Results of crossing dancer with other kinds of mice. Methods of keeping and caring for dancers--Cages, nest-boxes, and materials for nest--Cleansing cages--Food supply and feeding--Importance of cleanliness, warmth, and pure food--Relations of males and females, fighting--The young, num…
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