These now-extinct cephalods were the predecessors of modern-day squid, octopus, and nautilus and survived for nearly 335 million years! Young readers will discover how these shelled creatures came in myriad shapes, sizes, and designs, and how they managed to outlast several mass extinctions until about 65 million years ago.
A science career puts you at the cutting edge of innovations that can change the world, and in the STEM fields of science, the demand for science professionals is exploding. The Careers in STEM series covers exciting and rewarding jobs in the fields of physics, biology, engineering, aerospace and math. Bright and stimulating, packed with information and career advice.
Epic stories showcasing fabulous art. This series following EPIC voyages and discoveries, retell the adventures in fictional style.
Sea otters once ruled the Pacific Ocean, but the fur trade of the eighteenth and nineteenth centuries brought this predator to near extinction. Today they’re slowly coming back from the brink, and scientists are learning more about their pivotal role as one of nature’s keystone species. This book looks at the history, biology, behavior and uncertain future of sea otters. Author and photojournalist Isabelle Groc takes us into the field: watching sea otter rafts off the British Columbia coast from a kayak, exploring what makes their fur coats so special, understanding how their voracious appetites are helping kelp forests thrive and, ultimately, learning how sea otters are leaving their mark (or paws) on every part of the ecosystem. They might be one of the most adorable creatures in the ocean, but kids will discover how their survival is key to a rich, complex and connected ecosystem.
A detailed chronology of developmental milestones drives this life study of sharks, including their habitats, physical features, and conservation measures taken to protect these cartilaginous fish.
Describes the deepest part of the ocean, called the abyss, and explains how, with new equipment and technology, humans are beginning to learn more about the abyss and the creatures who live there.
A look at a common food chain in the Pacific Ocean, introducing the plankton that starts the chain, the killer whale that sits atop the chain, and various animals in between.
Practice measurement while learning all about sharks! These exciting creatures will fascinate children as they improve their mathematical and STEM skills, using familiar units of measurement to measure sharks and their ocean environment. With exciting images, simple practice problems, easy-to-read text, clear mathematical charts and diagrams, and an accessible glossary, this title will leave readers more confident in their measurement skills, encouraging them to measure things in their daily lives as well!
Gray whales live in the Pacific Ocean and can grow to be 50 feet (15 meters) long. Readers will discover how whale hunters brought these huge mammals to near extinction and how people are working together to help these giants of the sea fight for survival.
An elephant seal has a thick layer of blubber that keeps it from freezing in cold northern waters. This protective layer of blubber was prized by hunters who killed so many elephant seals that there were fewer than 100 left alive. Discover how government leaders and others took action to save these sea mammals from extinction.
Readers are introduced the habitat and lifestyle of the American Alligator and learn how the American Alligator is making a comeback from near extinction. Find out how people in the southeastern United States are learning to live with these amazing creatures.
Zebra Mussels are known for their striped shells and clingy habits. These natives of Europe and Asia traveled to North America in by ship. Learn more about why the zebra mussel poses a threat to native animals and the health of North American waterways.
This book is an introduction to biomes and ecosystems and provides background for the in-depth discussion of the ocean biome. Reading Essentials in Science.
Oceanography is the study of the ocean's composition, movements, and organisms. Reading Essentials in Science.
Lots of our food comes from farms, and so do fish! Some fish are caught in the wild, but we also eat fish that are raised on farms. Find out what fish farms look like, what fish farmers do, and how fish get from the farm to you. Discover the story of your food - where it was grown, who grows it, and how it gets to your plate.
This title introduces young readers to pearls, the gem formed inside the shell of an oyster! Learn how pearls are formed and where they are found. Historic and modern collection methods are detailed, both natural and cultivated. The use of pearls as a gemstone is examined including different colors. See how artisans and lapidaries create beautiful and useful jewelry with this beautiful gem. Finally, a list of tools and tips will set young rock hounds up to unearth their own treasures. Glossary words in bold, an index, and phonetic spellings for those hard-to-pronounce geologic terms enhance and supplement the text. Aligned to Common Core Standards and correlated to state standards.