#denticles

[gelana78]

Nbd, just petting a spiny shark, like one does.

[frogsarefun45]

[frogsarefun45]

1867 1 in Denticles Three Cent Nickel Fine Lot 1340 | eBay

Find many great new & used options and get the best deals for 1867 1 in Denticles Three Cent Nickel Fine Lot 1340 at the best online prices

[teachersource]

Did you know? Sharks’ skin helps them swim faster! You may know that shark skin is made up of scales called “denticles”, but you may not know that these scales are optimal for swimming quickly and quietly through the water. Each scale (shown here under an electron microscope) creates a tiny vortex and reduces both turbulence and hydrodynamic drag and enables the shark to glide almost silently through the water.

[earhartsease]

I wonder if sharks say "phew, I got away by the teeth of my skin there"

[techmaqofficial]

Giant Whale Sharks Have Hundreds of Tiny Teeth-Like Structures Around Their Eyes

Giant Whale Sharks Have Hundreds of Tiny Teeth-Like Structures Around Their Eyes

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Whale sharks, the majestic creatures that also happen to be the world’s largest fish, are far more gentle than the name suggests. They swim lazily around tropical waters, filter-feeding on plankton.

  Now, biologists have discovered the enigmatic giants have a curious trick up their sleeve – teeth-like scales adorning their eyeballs. It appears to be the whale sharks’ version of eyelids,…

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[uk-fossils]

An introduction to aetosaurs

An introduction to aetosaurs

The Triassic Period was one of the key episodes in the evolutionary history of life. It marks the transition from the Palaeozoic to the Mesozoic Era, preceded by the Permian/Triassic mass extinction – the greatest extinction event of all time. A conclusive explanation for it has still to be found, but it is presumed that massive eruptions of flood basalts in Siberia were a key factor. The…

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[matthewamey]

Spent the better part of an hour sanding the backs of these #customtiles that I created based on #shark skin #denticles. Looking forward to installing this textured wall in the kitchen soon.Thanks @junglejim1962 for the use of the belt sander! #renovations #oldhouse #newhome (at Ocean Pines, Maryland)