-- Jean-Louis Hartenberger, Nature

Refined in detail through three editions, the manuals outstanding features include: an explanation of keys and how to use them; the inclusion of keys designed t

With coverage on all the marine mammals of the world, authors Jefferson, Webber, and Pitman have created a user-friendly guide to identify marine mammals alive

There are more than 6000 species belonging to twenty-seven orders in the Class Mammalia. Comparative studies of this diverse and magnificent array of extant spe