Who were the first animals on Earth? What differentiates a reptile from an amphibian? How do mammals give birth? What do insects eat? This encyclopedia will answer these and more how's and what's for you. Learning is made simpler with well-labelled diagrams and an extensive glossary of difficult words. Bonus: the engrossing book comes loaded with Isn't It Amazing―a section of fun facts to keep you glued for more. This encyclopedia is a must-read for all children! - It is well-researched and has child-friendly content - The various topics improve knowledge about the world around us and beyond - The content will cater to curious minds and expand their horizon - The book comprises a glossary of new and difficult terms - It is an excellent selection for gifting and school libraries