I think the gills allow fish to breathe because water goes in them. Because they have holes in their gills so it is like a nose. But I don’t know how they stay alive if we can’t with our nose. Well if ...

When you and I take a deep breath, we pull air into our lungs. That’s because humans are mammals. But fish aren’t mammals. They usually don’t breathe air. They usually don’t have lungs. That’s what I ...

Few things in the ocean are more easily recognizable than a pufferfish having a bad moment. When they’re threatened, the fish rapidly gulp down water into their stretchy, distensible stomachs, puffing ...

Pufferfish can balloon into a spikey sphere within moments of sensing a nearby threat, and while it may seem like these creatures hold their breath as they inflate, they can actually breathe as they ...

SAVANNAH, Ga. – As government engineers work to keep the nation's fourth-busiest seaport from losing its competitive edge, they are also planning what amounts to a massive science project to ensure ...

Pufferfish have a couple of ways to defend themselves: They have an incredibly potent toxin in their flesh, and they can puff themselves out into a spine-covered ball that’s pretty difficult to eat.

MISSOURI (WJW) — It’s nicknamed the Frankenfish for its ability to continue living even on land. Its real name is the northern snakehead fish (Channa argus) and after being spotted at the Duck Creek ...