They're also the national symbol of Panama. But they started to disappear about fifteen years ago. What's killing them? Could it be a change in their habitat? What about pollution? Might it be a result of climate change? Follow a team of scientists working to save these frogs and protect frog populations worldwide in this real-life science mystery.

    My brain was overloaded. It smoked and glowed red-hot. And then it actually exploded.Ever wonder what the sun has to say about being the closest star to Earth? Or what Pluto has gotten up to since being demoted to a dwarf planet? Or where rocket ships go when they retire? Listen closely, because maybe, just maybe, your head will explode, too. With poetry that is equal parts accurate and entertaining -- and illustrations that are positively out of this world -- this book will enthrall amateur stargazers and budding astrophysicists as it reveals many of the wonders our universe holds. Space travelers in search of more information will find notes about the poems, a glossary, and a list of resources at the end.

    Wild Ideas looks deep into the forests, skies and oceans to explore how animals solve problems. Whether it’s weaving a safe place to rest and reflect, blowing a fine net of bubbles to trap fish, or leaping boldly into a new situation, the animals featured (including the orangutan, humpback whale and gibbon) can teach us a lot about creative problem solving tools and strategies.Like You Are Stardust, this book uses lyrical text grounded in current science alongside wonderfully detailed art to present problems as doorways to creative thinking. Wild Ideas encourages an inquiry-based approach to learning, inviting readers to indulge their sense of wonder and curiosity by observing the natural world, engaging with big ideas and asking questions. An author’s note at the end delves deeper into the research behind the text.

    From its earliest days as New Amsterdam to the contemporary wonders of Central Park, the Statue of Liberty, and the Empire State Building, to the kid-appealing subway, High Line, and so much more, Marc's rollicking text and gorgeous illustrations showcase what he's come to adore about New York after fulfilling his life-long dream to live in the city he fell in love with during a childhood visit. This is at once a personal story from the beloved creator of Arthur, a useful primer for first-time travelers on what to see and do with kids in the Big Apple, and a perfect keepsake after a visit. It's also a great gift for anyone who loves New York, the Crossroads of the World. New York! New York! It's a heckuva town!From the Hardcover edition.

    Back in the 1800s, information traveled slowly. Who would dream of instant messages? Samuel Morse, that’s who! Who traveled to France, where the famous telegraph towers relayed 10,000 possible codes for messages depending on the signal arm positions—only if the weather was clear? Who imagined a system that would use electric pulses to instantly carry coded messages between two machines, rain or shine? Long before the first telephone, who changed communication forever? Samuel Morse, that’s who! This dynamic and substantive biography celebrates an early technology pioneer.

    They defied the prejudices of the time. And they blazed a trail for generations of women to follow.What does it take to be an astronaut? Excellence at flying, courage, intelligence, resistance to stress, top physical shape — any checklist would include these. But when America created NASA in 1958, there was another unspoken rule: you had to be a man. Here is the tale of thirteen women who proved that they were not only as tough as the toughest man but also brave enough to challenge the government. They were blocked by prejudice, jealousy, and the scrawled note of one of the most powerful men in Washington. But even though the Mercury 13 women did not make it into space, they did not lose, for their example empowered young women to take their place in the sky, piloting jets and commanding space capsules. ALMOST ASTRONAUTS is the story of thirteen true pioneers of the space age.

    Children love dinosaurs, and this picture book is a wonderful introduction to the subject, with lifelike models and detailed illustrations sure to excite young readers.

    Follow Beauty's brave and inspiring story as she grows up in the wild, is rescued after being illegally shot, and receives a new beak specially engineered by a human team including a raptor biologist, engineer and dentist. Learn more about how bald eagles as a species came back from near extinction, and about nationwide efforts to conserve this American symbol.

    It came from outer space and crashed onto bookshelves! This third entry in the award-winning Got to the Museum series traces how a rock broke from its billion-year orbit to fall from space onto the trunk of a teenager's car, then to several natural history museums.

    The task he set for himself was daunting. Sequoyah knew no English and had no idea how to capture speech on paper. But slowly and painstakingly, ignoring the hoots and jibes of his neighbors and friends, he worked out a system that surprised the Cherokee Nation—and the world of the 1820s—with its beauty and simplicity. James Rumford’s Sequoyah is a poem to celebrate literacy, a song of a people’s struggle to stand tall and proud.

    Even young children are eager to help the environment — and here is a bright, inviting novelty book that offers simple ways to make a difference.Do you remember to turn off the tap while you brush your teeth? How about using both sides of the paper when writing and drawing? Or planting seeds and nurturing the new plants as they grow? Bold, child-friendly illustrations and die-cut pages will draw even the youngest listeners to this gentle reminder of the easy, everyday ways we can be kinder to the earth.

    In Johannesburg, Mandela saw fellow Africans who were poor and powerless. He decided then that he would work to protect them. When the government began to keep people apart based on the color of their skin, Mandela spoke out against the law and vowed to fight hard in order to make his country a place that belonged to all South Africans.Kadir Nelson tells the story of Mandela, a global icon, in poignant verse and glorious illustrations. It is the story of a young boy's determination to change South Africa and of the struggles of a man who eventually became the president of his country by believing in equality for people of all colors. Readers will be inspired by Mandela's triumph and his lifelong quest to create a more just world.

    Because even if they say those bad things, They don't know what they're doing."This is the true story of an extraordinary 6-year-old who helped shape history when she became the first African-American sent to first grade in an all white school. This moving book captures the courage of a little girl standing alone in the face of racism.

    Walking many miles to school in the dusty road, young Coretta knew, too well, the unfairness of life in the segregated south.A yearning for equality began to grow.Together with Martin Luther King, Jr., she gave birth to a vision and a journey—with dreams of freedom for all.This extraordinary union of poetic text by Ntozake Shange and monumental artwork by Kadir Nelson captures the movement for civil rights in the United States and honors its most elegant inspiration, Coretta Scott.

    Barnum, hoping that he would do something extraordinary--and he did! As a paleonotologist for the American Museum of Natural History, he discovered the first documented skeleton of the Tyrannosaurus Rex, as well as most of the other dinosaurs on display there today.An appealing and fun picture book biography, with zany and stunning illustrations by Boris Kulikov, BARNUM'S BONES captures the spirit of this remarkable man.