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What Do You Say?

HELLO Find out how ocean animals communicate. ART-DESIGN-PHOTOGRAPHY.COM

Humans use language to communicate. Animals communicate, too. Find out how.

JOHNNY JOHNSON—GETTY IMAGES

Some animals use sound. Each penguin has a special call. Other penguins hear the sound and know who is calling.

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Some animals light up. Jellyfish can make their bodies glow. They light up when a predator predator BY WILDESTANIMAL—GETTY an animal that kills and eats other animals to survive (noun) The great white shark is a fierce predator. comes near. The light scares the predator away.

ELVIRA DRAaT—GETTY IMAGES

Some animals use movement. Fiddler crabs wave their claws in the air. They do this to attract attract NEAGONEFO—GETTY to cause something to come closer (verb) Streetlights attract moths. a mate.

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Some animals use color. An octopus changes its color. A light color means the octopus is friendly. A dark color means it is angry.

Did You Know?

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Dolphins don’t have ears. But they understand sounds made by other dolphins. How? Sound makes vibrations vibration TASSII—GETTY a series of small, fast movements going up and down or side to side (noun) The vibration of my cell phone lets me know someone is calling. in water. Dolphins feel the vibrations in their jawbone.