Examine nature's diversity through profiles of twenty-four fascinating animals. This book showcases animals whose survival strategies are among the planet's most extreme. Every creature here shows how, over thousands of generations, a species can transformsize, shape, color, behavior, or abilitiesto meet the challenges necessary to ensure the future of its kind. The axolotl's "mane" of frilly gills, the naked mole rat's squinty, buck-toothed face, and the proboscis monkey's reddish honker may seem bizarre or outrageous, but they provide insight as to how every creature, in its own competitive and harsh niche, has evolved ways to compete for territory and mates, and to eat and not be eaten.