Who hasn't wanted to pet a shark? They might be apex predators, but they're still pretty cute. While they look featureless upon first glance, their skin is actually composed of dermal denticles.

Side view of a great white shark with highlighted skin sampling locations, showing detailed denticles captured by a microfocus X-ray CT scanner. New findings on how sharks achieve drag reduction could ...

Scanning electron images show four types of denticle shapes found in bonnethead shark skin, arranged from least to most pointed (A–D). Samples come from juvenile and mature female sharks, revealing ...