Why are some species admired or beloved while others are despised? An eagle or hawk circling overhead inspires awe while urban pigeons shuffling underfoot are kicked away in revulsion. Fly fishermen consider carp an unwelcome trash fish, even though the trout they hope to catch are often equally non-native. Wolves and coyotes are feared and hunted in numbers wildly disproportionate to the dangers they pose to humans and livestock.

In Trash Animals, a diverse group of environmental writers explores the natural history of wildlife species deemed filthy, unwanted,...