This book presents thirty-one extinct species through personal portraits. The intimate approach not only highlights each species but explores the broader implications of losing a species forever. How do we honour such a loss? Can we grieve for species we never knew? These animals range from the well-known passenger pigeon, thylacine and great auk, to lesser-known creatures like the Arabian ostrich, Saint Helena earwig and Bramble Cay melomys. These poignant portraits tug on the heartstrings and aim to inspire readers to protect vulnerable and endangered species today, motivating them to play a positive role in conserving our planet's biodiversity.