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🤯 Did You Know (click to read)
Sharks belong to a group of cartilaginous fish known as Chondrichthyes.
Unlike many bony fish, basking sharks lack a swim bladder. Instead, they rely on their enormous oil-rich liver and dynamic swimming to maintain buoyancy in the water column.
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💥 Impact (click to read)
Remaining suspended at multi-ton mass without a gas-filled organ demands precise density control. The oil-filled liver reduces overall body density, counteracting the tendency to sink in seawater.
This solution highlights how cartilaginous fish solve engineering challenges differently from bony fish. Buoyancy in a giant shark depends on biochemical composition rather than internal air chambers.
Source
Food and Agriculture Organization of the United Nations (FAO)
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