Ever since Darwin, animal behavior has intrigued and perplexed human observers. The elaborate mating rituals, lavish decorative displays, complex songs, calls,

The handicap principle is that signals are only taken seriously if the signal itself imposes a handicap on the signaller that would make cheating impossible or

Ever since Darwin, animal behavior has intrigued and perplexed human observers. The elaborate mating rituals, lavish decorative displays, complex songs, calls,

A FINALIST FOR THE PULITZER PRIZE NAMED A BEST BOOK OF THE YEAR BY THE NEW YORK TIMES BOOK REVIEW, SMITHSONIAN, AND WALL STREET JOURNAL A major reimagining of h

The reliability of animal signals is a central problem for evolutionary biologists. This text argues that it is maintained in several ways, relevant in differen