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It aids in breathing through the gills.

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16y ago

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Does chlorine kill fish?

Yes, chlorine is harmful to fish and can kill them if they are exposed to high levels of it in their water. It is important to always use a dechlorinator when setting up a new aquarium or performing water changes to make the water safe for fish.


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The pufferfish is known for its ability to swallow water to inflate itself into a larger, more round shape as a defense mechanism against predators. When threatened, the pufferfish gulps in large amounts of water to inflate its body, making it more difficult for predators to swallow.


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