Roughly 6,800 mammal species are known to exist, compared with about 8,800 species of amphibian, 11,000 species of bird and 12,500 of reptile. Yet when most people picture biodiversity, they often ...
Principles of taxonomy -- Formal classification of mammalia -- Review of mammalian classification -- Bibliography -- Index to technical names -- Index to vernacular names siris_sil_16894 ...
A REMARK made by Prof. Allen Thomson on this subject in a late number of NATURE induces me again to draw attention to some objections I offered to the placental classification in a review of Prof.
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