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.

    Each fall, while the city's inhabitants dine on steaks, salads, and sandwiches, the great white sharks return to California's Farallon Islands to hunt their favorite meal: the seals that live on the island's rocky coasts. Massive, fast, and perfectly adapted to hunting after 11 million years of evolution, the great whites are among the planet's most fearsome, fascinating, and least understood animals. In the fall of 2012, Katherine Roy visited the Farallons with the scientists who study the islands' shark population. She witnessed seal attacks, observed sharks being tagged in the wild, and got an up close look at the dramatic Farallons—a wildlife refuge that is strictly off-limits to all but the scientsts who work there. Neighborhood Sharks is an intimate portrait of the life cycle, biology, and habitat of the great white shark, based on the latest research and an up-close visit with these amazing animals.

    Why do crows have this ability? What does the crow know and what does it tell us about brain size, the evolution of intelligence, and just who is the smartest creature on the planet? In the latest addition to the Scientists in the Field series, the creators of The Frog Scientist take us to a beautiful Pacific island, where a lively cast of both crows and scientists is waiting to amuse and enlighten us.

    A tiny leak could shoot pressurized water straight through the men like bullets! A single spark could cause their oxygen tanks to explode! No one had ever dived lower than a few hundred feet...and come back. But Otis and Will were determined to become the first people to see what the deep ocean looks like.This suspenseful story from acclaimed author Barb Rosenstock with mesmerizing watercolors by award-winning artist Katherine Roy will put you right in the middle of the spine-tingling, record-setting journey down, down into the deep.

    They work hard, surrounded by top security and sworn to secrecy, until finally they take their creation far out into the desert to test it, and afterward the world will never be the same.

       This non-fiction picture book explores time and how we think about it in a different way - as a series of events in the natural world (some of them directly observable, others not) that take place in a given unit of time. Steve Jenkins' extraordinary illustrations will accompany this engaging look at time.

    A concise main text highlights how feathers are not just for flying. More curious readers are invited to explore informative sidebars, which underscore specific ways each bird uses its feathers for a variety of practical purposes. A scrapbook design showcases life-size feather illustrations.

    Readers will marvel at Jimmy's new life at Koala Hospital, being raised by loving human caregivers and interacting with other koalas healing from injury. The book also introduces young readers to the need for conservational awareness: Through Jimmy's life story readers will come to understand the many obstacles koalas and other species face today.

    You’ll fall in love with bad-boy Mateo, ooh and ahh over baby Biscuit, and want to wrap your arms around champion cuddle buddy Ubu!From British filmmaker and sloth expert Lucy Cooke comes a hilarious, heart-melting photographic picture book starring the laziest—and one of the cutest—animals on the planet.

    But have you ever heard of a butterfly farm? How do you raise a butterfly? On a farm in Costa Rica, workers care for these delicate, winged creatures as they change from eggs to caterpillars to pupae. Like any other crop, the butterflies will eventually leave the farm. But where will they go? And just how do you ship a butterfly? Very carefully! To discover how it works, follow these butterflies on a remarkable journey!

    Here is the incredible story of Elizabeth, a real-life elephant seal who made her home in the Avon River in the city of Christchurch, New Zealand. When Elizabeth decides to stretch out across a two-lane road, the citizens worry she might get hurt or cause traffic accidents, so a group of volunteers tows her out to sea. But Elizabeth swims all the way back to Christchurch. The volunteers catch her again and again—each time towing her farther, even hundreds of miles away—but, still, Elizabeth finds her way back home. Includes back matter with information about elephant seals.From the Hardcover edition.

    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.

    “Count Victor Lustig,” moved to Paris hoping to be an artist. A con artist, that is. He used his ingenious scams on unsuspecting marks all over the world, from the Czech Republic, to Atlantic ocean liners, and across America. Tricky Vic pulled off his most daring con in 1925, when he managed to "sell" the Eiffel Tower to one of the city’s most successful scrap metal dealers! Six weeks later, he tried to sell the Eiffel Tower all over again. Vic was never caught. For that particular scam, anyway. . . . Kids will love to read about Vic's thrilling life, and teachers will love the informational sidebars and back matter. Award-winner Greg Pizzoli’s humorous and vibrant graphic style of illustration mark a bold approach to picture book biography.

    It’s baggy, boneless body sprouts eight arms covered with thousands of suckers—suckers that can taste as well as feel. The octopus also has the powers of a superhero: it can shape-shift, change color, squirt ink, pour itself through the tiniest of openings, or jet away through the sea faster than a swimmer can follow.         But most intriguing of all, octopuses—classed as mollusks, like clams—are remarkably intelligent with quirky personalities. This book, an inquiry into the mind of an intelligent invertebrate, is also a foray into our own unexplored planet. These thinking, feeling creatures can help readers experience and understand our world (and perhaps even life itself) in a new way.

    From tiny aquatic plants to the biggest whale or fish, Bang presents a moving, living picture of the miraculous balance sustaining each life cycle and food chain deep within our wondrous oceans.On land or in the deep blue sea, we are all connected--and we are all a part of a grand living landscape. Co-authored by award-winning M.I.T. professor Penny Chisholm, a leading expert on ocean science, OCEAN SUNLIGHT is packed with clear, simple science. This informative, joyous book will help children understand and celebrate the astonishing role our oceans play in human life.