title: Alien Worlds: Your Guide to Extraterrestrial Life (National Geographic Kids)
author:  David A. Aguilar 
description: Gr 46After a brief overview of star life cycles, habitable zones, and how scientists conduct the search for Earth-like planets, the book presents the ecosystems and possible life forms of several imaginary planets. These worlds are based on actual planets observed outside our solar system, and the author makes clear connections between a given planet's characteristics (higher gravity than Earth, for example) and the effects on the alien life that evolved there (six-legged creatures reduce the weight load per leg). However, the transition between facts and fantasy is abrupt and may leave young readers confused about which content is real science and which is, as the book says, "scientifically based speculation." Readers with no background in the topic would be better served by the straightforward explanations in Mark Brake's The Alien Hunter's Handbook, which has a similarly jaunty, humorous tone. The digitally painted images, some based on polymer clay models, are not up to par with National Geographic's usual stunning photography but will be fun for browsers and fans of monster movie special effects. Back matter includes a complicated clay modeling project and extensive Web and print resources.Sarah Stone, San Francisco Public Library
zlib_text: DAD PANTHER
  ALIEN GUARDIANS OF EARTH #3
  
  DONNA MCDONALD
  VISIT DONNA’S WEBSITE
  
  Copyright © 2019 by Donna McDonald
  All rights reserved.
  No part of this book may be reproduced in any form or by any electronic or mechanical means, including information storage and
  retrieval systems, without written permission from the author, except for the use of brief quotations in a book review.
  This book is a work of fiction. Names, characters, places, and incidents either are the product of the author’s imagination or are used
  fictitiously. Any resemblance to actual persons, living or dead, businesses, companies, events, or locales is coincidental.
  This book contains content that may not be suitable for young readers 17 and under.
  Cover by Mina Carter
  Edit by MYST Partners and Madison Kamer
  Created with Vellum
  
  CONTENTS
  Acknowledgments
  Book Description
  Chapter 1
  Chapter 2
  Chapter 3
  Chapter 4
  Chapter 5
  Chapter 6
  Chapter 7
  Chapter 8
  Chapter 9
  Chapter 10
  Chapter 11
  Chapter 12
  Chapter 13
  Chapter 14
  Chapt