In “Beloved Beasts: Fighting for Life in an Age of Extinction,” science journalist Michelle Nijhuis chronicles the history of the wildlife conservation movement through the stories of the extraordinary people — both legendary experts and passionate amateurs — who shaped its evolution and expanding ambitions. Nijhuis introduces us to the Swedish scientists who devised the system of naming and grouping species that endures today, the rebel taxidermist who led the fight to save the American bison from extinction, the New York City socialite who demanded that the Audubon Society stop ignoring the gunning down of game birds by sportsmen, and more. These inspiring, dogged, and often flawed characters transformed both the ecological communities and ideas that we inherited. In this episode, we speak with Nijhuis about what we can learn from the stories of conservationists and their efforts to protect the wild animals that they loved, and the possibilities within a more equitable, inclusive fight to defend life.