2022 - First Steps How Upright Walking Made Us Human (Paperback) → Hardcover ISBN-13: 9780062938503 ISBN-10: 0062938509 Genres: History, Science & Math, Medical Books, Politics & Social Sciences ? 2021 - First Steps How Upright Walking Made Us Human (Hardcover) → Paperback ISBN-13: 9780062938497 ISBN-10: 0062938495 Genres: History, Science & Math, Politics & Social Sciences 2 |