'Beloved Beasts' by Michelle Nijhuis offers a compelling narrative on the conservation movement's evolution, from its inception aimed at protecting iconic species to its current broad focus on preserving biodiversity amidst industrial growth and climate change. Highlighting key figures like Aldo Leopold and Rachel Carson, the book sheds light on the triumphs and challenges of conservation, including its troubled past and the race against mass extinctions. Nijhuis calls for a united effort to safeguard life on Earth, underscoring the interconnectedness of human and non-human lives.