![Erin Dillon on Twitter: "1) How abundant were sharks on coral reefs before humans? Coastal #shark populations are depleted in many regions today, but long-term survey data are limited. Shark scales (dermal Erin Dillon on Twitter: "1) How abundant were sharks on coral reefs before humans? Coastal #shark populations are depleted in many regions today, but long-term survey data are limited. Shark scales (dermal](https://pbs.twimg.com/media/EmEsg9QU8AAxWKK.jpg:large)
Erin Dillon on Twitter: "1) How abundant were sharks on coral reefs before humans? Coastal #shark populations are depleted in many regions today, but long-term survey data are limited. Shark scales (dermal
![Shark skin is composed of placoid scales, also called dermal denticles. This a a close look at the tiny tooth-like structures which give sharks skin Stock Photo - Alamy Shark skin is composed of placoid scales, also called dermal denticles. This a a close look at the tiny tooth-like structures which give sharks skin Stock Photo - Alamy](https://c8.alamy.com/comp/PE0084/shark-skin-is-composed-of-placoid-scales-also-called-dermal-denticles-this-a-a-close-look-at-the-tiny-tooth-like-structures-which-give-sharks-skin-PE0084.jpg)
Shark skin is composed of placoid scales, also called dermal denticles. This a a close look at the tiny tooth-like structures which give sharks skin Stock Photo - Alamy
![Configurations of the real and biomimetic shark scales. a Schematic of... | Download Scientific Diagram Configurations of the real and biomimetic shark scales. a Schematic of... | Download Scientific Diagram](https://www.researchgate.net/publication/364306125/figure/fig1/AS:11431281092371211@1666835905243/Configurations-of-the-real-and-biomimetic-shark-scales-a-Schematic-of-a-spadenose-shark.png)
Configurations of the real and biomimetic shark scales. a Schematic of... | Download Scientific Diagram
![Energies | Free Full-Text | Aerodynamic Characteristics of Shark Scale-Based Vortex Generators upon Symmetrical Airfoil Energies | Free Full-Text | Aerodynamic Characteristics of Shark Scale-Based Vortex Generators upon Symmetrical Airfoil](https://pub.mdpi-res.com/energies/energies-14-01808/article_deploy/html/images/energies-14-01808-g001.png?1627945768)
Energies | Free Full-Text | Aerodynamic Characteristics of Shark Scale-Based Vortex Generators upon Symmetrical Airfoil
![These Tiny Scales Make Sharks Incredibly Fast. Can They Help Us Build Better Planes? | National Geographic These Tiny Scales Make Sharks Incredibly Fast. Can They Help Us Build Better Planes? | National Geographic](https://static.nationalgeographic.co.uk/files/styles/image_3200/public/01-shark-skin-turbine.jpg?w=1600&h=900)
These Tiny Scales Make Sharks Incredibly Fast. Can They Help Us Build Better Planes? | National Geographic
![Dorsal view of placoid scales from a 135.5 cm TL female blacktip shark... | Download Scientific Diagram Dorsal view of placoid scales from a 135.5 cm TL female blacktip shark... | Download Scientific Diagram](https://www.researchgate.net/publication/230830036/figure/fig5/AS:267932009758732@1440891377411/Dorsal-view-of-placoid-scales-from-a-1355-cm-TL-female-blacktip-shark-Carcharhinus.png)