What material largely composes the skeleton of the ancient white sturgeon?
Answer
Cartilage
A defining ancient trait separating sturgeon from the majority of modern bony fishes relates to their internal skeletal structure. Unlike most familiar fish whose skeletons are primarily made of true bone, the white sturgeon belongs to an ancient group whose skeletons are composed largely of cartilage. This characteristic, along with other primitive features like their body shape and fin arrangement, emphasizes their status as living fossils that have maintained their basic anatomy across millions of years of evolutionary history.
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