
What Makes Learning About Sponge a Look at One of Earth’s Simplest Animals?
Some animals have brains. Some have muscles. The sponge has neither. It is one of the simplest animals on Earth. Yet it has survived for over 600 mill ...
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Some animals have brains. Some have muscles. The sponge has neither. It is one of the simplest animals on Earth. Yet it has survived for over 600 mill ...
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Some animals are admired for their beauty. Others are known for their speed. The sea cucumber is admired for something else. It cleans the ocean floor ...
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Some animals move fast. Others hide in shells. The sea urchin does something different. It moves slowly on tiny tube feet. It wears a suit of spines. ...
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Some animals have changed little over millions of years. The lamprey is one of them. It swims in oceans and rivers much as its ancestors did before di ...
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Some animals are famous for their speed. Others are known for their beauty. The hagfish is famous for something else. It cleans the ocean floor. It pr ...
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Some animals run fast. Others hide well. The electric eel does something no other creature does quite the same way. It generates electricity. For chil ...
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Some fish live where sunlight reaches. Others dwell in the dark. The anglerfish lives in the deepest, darkest parts of the ocean. It carries its own l ...
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Some fish rely on speed. Others depend on hiding. The porcupine fish takes a bolder approach. It transforms into a spiky, unswallowable ball. For chil ...
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Some fish swim fast to escape danger. Others hide in rocks. The pufferfish does something extraordinary. It transforms. In an instant, it becomes a sp ...
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Some fish swim upright. Others drift with the current. The flounder does something entirely different. It lies flat on the ocean floor. Its body blend ...
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Some fish thrive in warm, slow rivers. The trout prefers something different. It seeks cold, clear water with a steady current. For children, learning ...
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Some fish hide in deep waters. Others swim near the surface. The bass does both. It waits quietly. Then it strikes with speed. For children, learning ...
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