Rare card
Swim bladder
- Value
- 50 W
- Attack
- 274
- Defence
- 219
- Players
- 0
The swim bladder, gas bladder, fish maw, air bladder or sound is an internal gas-filled organ in bony fish that functions to modulate buoyancy, and thus allowing the fish to stay at desired water depth without having to maintain lift via swimming, which expends more energy.
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