I was in a store and I saw a jackfruit, seen here https://livenaturallymagazine.com/all-about-jackfruit/ with this sort of...scaly yet round and also pointy texture.
Then, I could have sworn I saw some kind of texture like this on animals, so I tracked down a couple images, like the back of a bearded dragon https://shannonwild.photoshelter.com/image/I0000Wf4WI2Vn.V0 and the pads of an owl https://i.pinimg.com/originals/a1/94/07/a19407eff53e0fd06c48144c4541e3d8.jpg
What is the name for this semi-spiky texture, and what is the practical use of its topology?