This book is fascinating and well written. It has scientific caution and nuance but is storyline and keeps interest flowing. Chapter headings fit the chapters' information, and each chapter is more amazing than the previous one.s. Concepts like "intelligence" and "consciousness" and "agency" are defined in non anthropomorphic ways., for example intelligence is recognizing one's environment and responding appropriately. Chapters cover hearing, vision, communication, and cooperation with kin. Totally fascinating.