This item is a preserved wet specimen shark in a glass bottle mounted on a styrofoam white base labeled “Shark”, often sold as a novelty collectible or educational display.
Species: Typically a baby spiny dogfish shark (Squalus acanthias).
Preservation: The shark is contained within a liquid, usually isopropyl alcohol, to keep it intact.
Purpose: Used for marine biology interest, science education, or as a decorative oddity.