Helicoprion - Numerous species of sharks make their homes in the ocean's depths, rarely encountered by land-dwellers. Though not a true shark, the helicoprion belongs to a si...

<p>Numerous species of sharks make their homes in the ocean's depths, rarely encountered by land-dwellers.</p><hr /><p>Though not a true shark, the helicoprion belongs to a similar lineage of cartilaginous fishes. The predator's most striking feature is its tooth whorls, which spiral outward in its lower jaw.</p>

Helicoprion

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Numerous species of sharks make their homes in the ocean's depths, rarely encountered by land-dwellers. Though not a true shark, the helicoprion belongs to a similar lineage of cartilaginous fishes. The predator's most striking feature is its tooth whorls, which spiral outward in its lower jaw.