But there was a time when people hunted the otters almost to extinction. Without sea otters to eat them, an army of hungry sea urchins grew and destroyed entire kelp forests. Fish and other animals that depended on the kelp were lost, too. But when people protected the sea otters with new laws, their numbers began to recover, and so did the kelp forests. Susannah Buhrman-Deever offers a beautifully written account of a trophic cascade, which happens when the removal of a single element affects an entire habitat. Asides that dig deeper are woven throughout Matthew Trueman’s dynamic illustrations, starring a raft of charismatic sea otters. Back matter includes more information about sea otters and kelp forests, including their importance and current status, the effects of the international fur trade on indigenous peoples, and a list of books and websites for readers who wish to continue to explore.

    An attractive and informative volume for young stargazers.” —Kirkus Reviews“Manley’s writing swings gracefully between factual descriptions … and more lyrical observations: “All stars twinkle, but some stars also seem to wink at us... as if saying, ‘I know a secret.’ ” … Richly informative prose and intimate yet expansive art show a child’s contagious enthusiasm for the book’s subject. Includes a timeline of astronomical discoveries and suggestions for further reading.” —Publishers WeeklyDo you wonder if humansare the only beingswho wonderif they are alone in the universe?Our sun is a star.In the night sky are all kinds of stars, and orbiting those starsare planets like the ones in our own solar system.Could those planets have lifelike we do on Earth?Planet Earth is not too big, not too small, not too hot, and not too cold. It's just right.Our very own Goldilocks planet . . . .Follow a young girlas she explores these questionsin this gorgeous book about the wondrous searchfor another Goldilocks planet.

    Its coils took a walk…and so did Richard’s imagination. He knew right away that he had stumbled onto something marvelous. With the help of his wife, Betty, Richard took this ordinary spring and turned it into a plaything. But it wasn’t just any old trinket—it was a Slinky, and it would become one of the most popular toys in American history.

    In this fascinating book, hero-astronaut Buzz Aldrin challenges curious kids to think about Mars as not just a faraway red planet but as a possible future home for Earthlings! What will your new home be like? How will you get there? What will you eat for breakfast? Find out what life might be like far, far from Earth as you navigate your way through this fun and fascinating book. What kid wouldn't want to blast off with him on this (literary) journey!

    Unlikely Friendships tells one story after another of animals who, with nothing else in common, bond in the most unexpected ways and thrive on the warmth, closeness, and trust that come with being true friends.Imagine a predator cuddling its prey. Or a bird befriending a mammal. Or a fish poking its nose out of the water to nuzzle a dog. Or a massive gorilla - the one named Koko, famous for her ability to communicate in sign language - embracing a tiny kitten.Science writer Jennifer S. Holland narrates each story, and also offers insights into these relationships. Sometimes there are plausible scientific explanations: an orphan seeking comfort from an older animal; an adult yearning for a younger creature to nurture. Consider the lioness who befriended and protected a baby oryx - unexpected, but not inexplicable. Sometimes a friendship is about need, as in the case of the blind Lab and her "seeing-eye" cat. B ut sometimes it's just a lovely mystery. How else can one explain the story of Owen the hippo and Mzee the tortoise, two notoriously surly creatures who became bosom buddies?Each story reveals the true power of friendship and, to some degree, the many forms of "love" that seem to exist in the animal kingdom. Yes, scientists might scoff at that notion, but readers may feel a little differently about the world after they finish this book.

    

    Whenyou upgrade to Extra Class, you gain access to the entire Amateur Radio frequency spectrum. Ues this book to ace the top-level ham radio licensing exam. Our expert instruction will lead you through all of the knowledge you need to pass the exam: rules, specific operating skills and more advanced electronics theory.

    He amassed enough noteworthy acccomplishments to cover the entire alphabet from A to Z. This nontraditional tribute has information about a Founding Father who was as amusing as he was amazing.

    He is working on unique and daring improvements to both public transit and solar energy. And then, there's his highly-publicized plans for colonizing Mars...But behind the mind-blowing headlines and legendary drive is the story of a bullied and beaten school boy, who through creativity and determination decided to rewrite his story and find his own way to make the world a better place. And to do so with a sense of fun and style.From hosting raves to pay for college to re-writing the rules on space travel, Elon Musk has always gone his own way. And now, award-winning investigative journalist, Anna Crowley Redding takes readers on a well-researched trip through Elon's life and accomplishments.

    "Were it to vanish tomorrow," he writes, "our modern world would grind to a halt. The Internet would implode--your Internet would implode." Although his examination of the company is playful and fascinating in its own right, Coupland's account is driven by his thoughtful reflections on the larger cultural and sociological significance of the transformative information technology Alcatel works on: fiber wire, microprocessors, the Internet and mobile technologies. And by a larger meditation about what the Internet is doing to us as it relentlessly colonizes the planet, and our brains.Like Coupland's best work, Kitten Clone is a wildly entertaining yet penetrating encounter with the technological and cultural forces that surround us. And also a surprising and unique exploration of a possible future.

    A B-17 bomber drones high over the Pacific Ocean, sending a desperate SOS into the air. The crew is carrying America's greatest living war hero on a secret mission deep into the battle zone. But the plane is lost, burning through its final gallons of fuel.At 1:30 p.m., there is only one choice left: an emergency landing at sea. If the crew survives the impact, they will be left stranded without food or water hundreds of miles from civilization. Eight men. Three inflatable rafts. Sixty-eight million square miles of ocean. What will it take to make it back alive?

    He is known for both his breakthroughs in theoretical physics as well as his ability to make complex concepts accessible for all, and was beloved for his mischievous sense of humor. At the time of his death, Hawking was working on a final project: a book compiling his answers to the "big" questions that he was so often posed--questions that ranged beyond his academic field. Within these pages, he provides his personal views on our biggest challenges as a human race, and where we, as a planet, are heading next. Each section will be introduced by a leading thinker offering his or her own insight into Professor Hawking's contribution to our understanding.

    Now, using never-before-published quotes taken from his in-depth interviews with twenty-three of the twenty-four Apollo lunar astronauts, Chaikin and his collaborator, Victoria Kohl, have created an extraordinary account of the lunar missions. In Voices from the Moon the astronauts vividly recount their experiences in intimate detail; their distinct personalities and remarkably varied perspectives emerge from their candid and deeply personal reflections. Carefully assembled into a narrative that reflects the entire arc of the lunar journey, Voices from the Moon captures the magnificence of the Apollo program like no other book. Paired with their own words are 160 images taken from NASA's new high-resolution scans of the photos the astronauts took during the missions. Many of the photos, which are reproduced with stunning and unprecedented detail, have rarely-if ever-been seen by the general public. Voices from the Moon is an utterly unique chronicle of these defining moments in human history.

    Through vintage photographs, advertisements, cartoons, and songs, Wheels of Change transports young readers to bygone eras to see how women used the bicycle to improve their lives. Witty in tone and scrapbook-like in presentation, the book deftly covers early (and comical) objections, influence on fashion, and impact on social change inspired by the bicycle, which, according to Susan B. Anthony, "has done more to emancipate women than anything else in the world."NCSS—Notable Social Studies Trade Books in the Field of Social Studies 2012School Library Journal Best Books of 2011Finalist YALSA Excellence in Non Fiction for Young AdultsSLJ’s 100 Magnificent Children’s Books of 2011Amelia Bloomer List

    Whir. Buzz.Not so long ago, math problems had to be solved with pencil and paper, mail delivered by postman, and files were stored in paper folders and metal cabinets. But three women, Betty Snyder, Jean Jennings, and Kay McNulty knew there could be a better way. During World War II, people hoped ENIAC (Electronic Numerical Integrator and Computer), one of the earliest computers, could help with the war effort. With little guidance, no instructions, and barely any access to the machine itself, Betty, Jean, and Kay used mathematics, electrical engineering, logic, and common sense to command a computer as large as a room and create the modern world. The machine was like Betty, requiring outside-the-box thinking, like Jean, persistent and consistent, and like Kay, no mistakes, every answer perfect. Today computers are all around us, performing every conceivable task, thanks, in large part, to Betty, Jean, and Kay's pioneering work. Instructions Not Included is their story.This fascinating chapter in history is brought to life with vivid prose by Tami Lewis Brown and Debbie Loren Dunn and with striking illustrations by Chelsea Beck. Detailed back matter including historical photos provides a closer look.