Pufferfish: The Fish That Turns Into a Balloon!

Added: 2026-06-02

[00:00:00]Would you touch this fish? One second, it's tiny. The next, it's a floating ball of spikes.

[00:00:07]This is the pufferfish, one of the ocean's strangest creatures. It lives in tropical and subtropical waters around the world.

[00:00:14]When danger gets close, the pufferfish gulps huge amounts of water or air and inflates like a balloon.

[00:00:21]As it expands, sharp spikes stick out, making it much harder for predators to swallow. [music] But that's not its only defense. Many pufferfish contain a deadly poison called tetrodotoxin, up to 1,200 times more toxic than cyanide. [music] Some male pufferfish even create amazing circular sand art to attract mates. It's one of nature's most incredible underwater displays.

[00:00:47]A fish that turns into a balloon, grows spikes, and carries deadly poison. The pufferfish might be the ocean's ultimate survival expert.

[00:00:55]Would you swim near a pufferfish?

[00:00:58]Subscribe to Creature Science Hub for more amazing water creatures.