But the invention of steam power ushered in a new era of transportation that would change ocean travel forever: the steamship.Author-illustrator David Macaulay guides readers through the history that culminated in the building of the most advanced—and last—of these steamships: the SS United States. This book explores the design and construction of the ship and the life of its designer and engineer, William Francis Gibbs.

    His story started almost 25 years ago in Louisiana, where he hatched out of his egg to discover he looked different from the other hatchlings. They were green and Claude was white. The other hatchings avoided him, and his color made him vulnerable to predators. So Claude went to a special zoo that cared for alligators where he lived in a pen by himself. Now he was safe--but alone.One day, scientists at the California Academy of Sciences heard about him and asked the zoo if he could come and live in the Academy's swamp. He made a 2,800 mile journey to his new home, where he had a surprise--he would share his swamp with Bonnie, an alligator who the scientists hoped would be a friend for Claude.Unfortunately, Bonnie didn't like Claude's differences either, so she was moved to another home. But then Claude was alone again--or was he?With Bonnie gone, Claude began to interact with the five enormous snapping turtles who shared his swamp. The turtles didn't mind at all that Claude was different! And neither do the millions of people who visit him every year. They know that Claude's differences are exactly what makes him special.Claude includes back matter with answers to frequently asked questions about the famous alligator, including information about albinism in animals.

    But what happens when construction spreads over, under, across, and through animal habitats? Thankfully, groups of concerned citizens, scientists, engineers, and construction crews have come together to create wildlife crossings to help keep animals safe. From elk traversing a wildlife bridge across a Canadian interstate to titi monkeys using rope bridges over a Costa Rican road to salamanders creeping through tiny tunnels beneath a Massachusetts street, young readers are certain to be delighted and inspired by these ingenious solutions that are saving the lives of countless wild animals.

    Did you know that five starlings weigh the same as one squirrel—or that three rabbits weigh the same as one fox cub? Kids—and parents, too—will be amazed and amused by every surprising and intriguing page.

    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.