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Los mamíferos marinos conocidos como cetáceos están divididos en dos grupos: ballenas dentadas (incluyendo delfines y marsopas) y ballenas barbadas. Un grupo solo tiene un espiráculo para respirar y el otro tiene dos. Un grupo tiene aletas dorsales altas para mantener el balance mientras persiguen a sus presas. El otro recoge agua y presas con su inmensa boca mientras nadan y no necesitan aletas dorsales altas. Un grupo utiliza la ecolocalización y el otro no. Aprende más sobre las similitudes y diferencias de estos animales.

Like humans, dolphins learn through play, observation, and experimentation. Some learned behaviors are fun things to pass the time. In different parts of the world, dolphins have learned some fascinating hunting techniques that help them survive. Whether these learned behaviors are taught from generation to generation or learned by observation, those dolphins have unique hunting skills found only in those areas.

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.

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!

Download this audiobook to treat yourself to some of the cutest baby animals around. It doesn't matter if they are eating, sleeping, or playing, the babies in this series are absolutely adorable.

Follow the lives of animals under the sea as they hunt for food and defend their territories. This volume includes Sea Horses, Sea Otters, Sea Slugs, Sea Turtles, Sharks, and Squids.

Follow the lives of animals under the sea as they hunt for food and defend their territories. This volume includes Clownfish, Corals, Crabs, Jellyfish, Manatees, and Pufferfish.

In each title, an action-packed narrative scene imagines a fight between the animals. This Volume includes Asiatic Lion vs. Bengal Tiger, Badger vs. Bobcat, Mantis Shrimp vs. Lionfish, and Skunk vs. Raccoon.

Reluctant listeners will love their front-row seats to action with this series! This volume includes Ostrich vs. Cheetah and Tiger Shark vs. Leopard Seal.

Reluctant listeners will love their front-row seats to action with this series! This volume includes Anaconda vs. Jaguar, Gorilla vs. Leopard, and Great White Shark vs. Killer Whale.

Did you know there is a whale as long as two school buses? Or a bird that's so heavy it can't even fly? Kids will enjoy exploring the world of supersized animals in this exciting series.

Lizards bask in the desert heat. Mountain goats climb to the highest peak. This series introduces children to animals from a variety of ecosystems while providing a fun and supportive listening experience. Repetitive text patterns feature high-frequency vocabulary and familiar content words further facilitate understanding.

Explore the waters of the ancient world in this hi-lo series for reluctant learners! They will discover giant turtles, enormous sharks, and more throughout the engaging text. This volume includes Archelon, Ichthyosaurs, and Megalodon.

Coral reefs are among the busiest biomes on Earth! These warm-water habitats are full of animals specially made to thrive in the reefs. This series takes young listeners on a journey to the world’s coral reefs. Along the way, simple text will explore how animals adapted to live in the reefs. Special features help listeners explore the range, adaptations, conservation status, and diet of each coral reef creature.