Скачать или смотреть How Pufferfish Defend Itself

The pufferfish has one of the ocean’s most dramatic defense mechanisms. When threatened, it rapidly gulps water (or air when out of water), expanding its elastic stomach to become several times larger—too big for most predators to swallow.

This inflation works as an instant shield, but it comes with a cost. When puffed up, the fish loses mobility, struggles to swim, and must slowly release the water to recover. Overinflation or frequent use can even cause stress or exhaustion.

Despite its cute appearance, the pufferfish also hides a deadly secret—many species contain tetrodotoxin, one of the most potent natural poisons on Earth. A fascinating mix of defense, danger, and biology.



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