The book that introduced this process describes the peculiar noses of seals, and notes that mammals are much more prone to warfare-like activities. That book about this process proposes that poor people shouldn't marry, since that makes them become "indolent." This process created most of modern culture, especially the arts, according to Geoffrey Miller. Sir Edward Bagnall Poulton's The Colours of Animals was attacked by Alfred Russel (*) Wallace for its support of this theory. This process leads to a natural kind of "conspicuous consumption," 
The book that introduced this process describes the peculiar noses of seals, and notes that mammals are much more prone to warfare-like activities. That book about this process proposes that poor people shouldn't marry, since that makes them become "indolent." This process created most of modern culture, especially the arts, according to Geoffrey Miller. Sir Edward Bagnall Poulton's The Colours of Animals was attacked by Alfred Russel (*) Wallace for its support of this theory. This process leads to a natural kind of "conspicuous consumption," according to Amotz Zahavi's handicap principle. It was postulated to have produced men's beards and the otherwise general hairlessness of humans in Part II of Charles Darwin's Descent of Man. A "runaway" kind of this process proposed by R.A. Fisher produced the enormous plumage of peacocks. For 10 points, name this kind of natural selection based on competition for mates.
The book that introduced this process describes the peculiar noses of seals, and notes that mammals are much more prone to warfare-like activities.
sexual selection [prompt on "natural selection" or "selection"]