Phases of Animal Life: Past and Present is a comprehensive book authored by Richard Lydekker, a renowned British naturalist and geologist. The book explores the evolution and history of animal life on Earth, examining the different phases and stages of development that animals have undergone over millions of years. Lydekker provides detailed accounts of various animal groups, including mammals, birds, reptiles, amphibians, and fishes. He discusses their origins, adaptations, and diversification, as well as their interactions with the environment and other species. The book also covers extinct animals, such as dinosaurs and prehistoric mammals, and their place in the evolutionary history of life on Earth.Throughout the book, Lydekker draws on his extensive knowledge of zoology and geology to present a compelling and informative narrative of the history of animal life. He uses a range of illustrations, diagrams, and photographs to enhance the reader’s understanding of the subject matter. Phases of Animal Life: Past and Present is an essential resource for anyone interested in the natural world, evolution, and the history of life on Earth. It is a fascinating and engaging read that will appeal to both scientists and general readers alike.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world’s literature in affordable, high quality, modern editions, that are true to their original work.