A beautifully illustrated, age-appropriate exploration of how new life begins and why there are only two sexes. Children will discover how males produce sperm, females produce eggs, and how these tiny gametes join to start a new organism across humans, other animals, and plants., biology, biology for kids, human reproduction for children, sperm and egg explained, male and female biology, where babies come from, Cynthia Breheny| 9798988707882 | 28PAGES