A HEARTY welcome may be accorded to the work referred to below, which contains a well-elaborated and highly philosophical digest of the present state of our knowledge of the past history and ...

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.

Principles of taxonomy -- Formal classification of mammalia -- Review of mammalian classification -- Bibliography -- Index to technical names -- Index to vernacular ...

In the 275 years between the first printing of Carl Linnaeus' Systema Naturae, the ur-text of biological taxonomy, and the 2005 publication of the third edition of Mammal Species of the World, the ...

Bats, rodents, hedgehogs, and shrews are mammals among the orders that are predicted to have the most undescribed mammals. (Pictured: a bicolored shrew) Werner Korschinsky via Wikimedia Commons under ...