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Marine mammals known as cetaceans are broken into two large groups: toothed whales (including dolphins and porpoises) and baleen whales. One group has a single blowhole to breathe air, the other has two. One group has tall dorsal fins to help maintain balance as they chase prey. The other scoops up water and prey in their large mouths as they swim slowly along—they don’t need large dorsal fins. One group uses echolocation, the other doesn’t. Learn more about what these animals have in common and how they are different in this latest installment of the Compare and Contrast Series.

Tiger sharks eat almost anything they can catch. But the practice of dumping garbage in oceans is harmful to these predators who tend to eat something without realizing it isn’t food. This causes tiger sharks to eat license plates and other non-food items they cannot digest.

Experience the wonder and learn about the aquatic life on Liberty Bay with Ben and his new friend, Samantha.

What makes all these animals fish? Fish live in the water, but they have other defining characteristics as well. Who else lives in the ocean?

Adelita, a loggerhead sea turtle, was the first ocean-going animal to be tracked with a satellite transmitter. How would she find her way?

The freshwater eel is a fish that makes two remarkable journeys, one at the beginning of its life, and another at the end. It is born in the ocean, lives its adult life in a freshwater stream, then returns to the ocean.

Welche Mutter und welcher Vater kennt sie nicht, die vielen Fragen neugieriger Kinder: «Warum? Wieso? Wie funktioniert das? Was ist das?»Natürlich sind die Tiere der Unterwasserwelt der Meere nicht so einfach in ihrem natürlichen Lebensraum zu beobachten wie die Wassertiere in unseren Flüssen, aber es sind wunderbare Tiere mit schillernden Farben, spannenden Eigenschaften und kleinen Geheimnissen. In diesem Buch werden zehn dieser Tiere vorgestellt.

For millions of years, a massive shark more than twice as huge as the modern-day great white shark cruised the depths of the ocean, attacking and devouring prey. Fossil remains reveal megalodon to have been more than 50 feet long, with razor-sharp teeth, each the size of a human hand, and jaws so large it could swallow prey larger than a common dolphin! Find out more about the megalodon and its prehistoric world.

Ever wondered how sharks are different from other fish, and what makes them such fearsome hunters? Or how a feeding frenzy works? Listen to this exciting book for answers to questions you'll be glad we asked - plus "Did You Know?" fun facts!

Get up close to nature with naturalist and TV presenter Chris Packham CBE and encounter the amazing animal superheroes that will help us save the world.

With bodies home to hollow bones and weighing about the same as a handful of sand, Arctic terns are designed for flight. And fly they do. These remarkable animals migrate an astonishing 18,000 miles—from pole to pole and back again—each year. Along the way they encounter danger, weather, other migratory animals, and a wide range of ecosystems and habitats. Because they chase the sun, ornithologists speculate that the Arctic tern enjoys more hours of daylight than any other animal on Earth.

Oceans Alive takes listeners on a field trip to the ocean! Young learners are introduced to the physical characteristics, habitats, and behaviors of animals including sharks, whales, clown fish, and many more creatures of the sea. This volume includes Corals, Crabs, Dolphins, Jellyfish, Octopuses, Sea Horses, and Sea Turtles.

Spanning from pre-colonization to today, learn how the industrial revolution, overfishing, and pollution drove whales away from New York Harbor and the Hudson River by the early 20th Century. But the story doesn’t end there. Passionate citizens were able to band together and clean up the harbor through activism and legislation. The first whales were spotted in the Hudson after over 100 years in 2019! Here is an uplifting environmental success story full of towering skyscrapers and underwater dramatics that highlights the power of community

The animal kingdom is full of look-alikes! Young listeners will dig into physical and behavioral traits of each animal. Beginning listeners will be able to tell these doppelgängers apart in no time! This volume includes Turtle or Tortoise?, Wolf or Coyote?, Beaver or Muskrat?, Frog or Toad?, Hedgehog or Porcupine?, and Octopus or Squid?

When winter ice covers the Arctic Ocean, a narwhal pokes his head through a patch of open water, his tusk—a six-foot long tooth—pointed to the sky. Join this mammal as he jousts with another narwhal, floats with his pod, and uses echolocation to find his prey. When warmer weather arrives, he will migrate towards summer ground. But he must be careful! Predators—orcas and polar bears—will be hungry and looking for a meal.... How will the narwhal escape? Will he be able to return to the winter bay?

Las focas y los leones marinos tienen un aspecto similar y algunas veces es complicado saber cuál es cuál. Ambos mamíferos marinos nadan con aletas y pueden encontrarse en océanos alrededor del mundo. Uno tiene orejas visibles, mientras que las orejas del otro no son externas. Uno atraviesa el agua utilizando sus aletas traseras, mientras que el otro usa sus aletas frontales para nadar. Ya sobre tierra, uno rebota hacia sus alrededores, mientras que el otro puede “caminar” sobre sus aletas.

¿Qué tienen en común y en qué se diferencian los cangrejos y las langostas? Aunque ambos animales viven en el océano, uno prefiere nadar y el otro caminar. Uno puede ser encontrado en pozas costeras y el otro en alta mar. Ambos tienen esqueletos en la parte externa de sus cuerpos. ¡Hay mucho más sobre estos animales además de ser un buen alimento para nosotros! Aprende sobre estos crustáceos fascinantes en la edición más reciente de la serie de Un libro de comparaciones y contrastes.

Seals and sea lions look very similar, and it’s sometimes difficult to tell them apart. Both marine mammals live in oceans all over the world. One has visible ear flaps, while the other has ears but no external flaps. One swooshes through the water using their back flippers, and the other uses their front flippers to swim through water. On land, one bounces along, and the other can “walk” on their hind flippers. Learn about the similarities and differences between these marine mammals in this latest addition to our Compare and Contrast Series!

What do crabs and lobsters have in common, and how are they different? While both animals live in the ocean, one prefers to swim and the other walks. One can be found in coastal tidepools and the other offshore. They both have skeletons on the outside of their bodies. There’s more to these animals than just being good food for us. Learn about these fascinating crustaceans in the latest addition to our Compare and Contrast Series.

Some ocean creatures are masters of disguise! They use camouflage and cover to outsmart predators or sneak up on prey. Some ocean animals blend in with sand, pebbles, and more. Others hide in coral reefs or beneath the ocean floor. Learn more about creatures that hide in the ocean!