The sharp quills are sewn into the surface of the box so as to create an abstract design or illustration.

Directly in the center of the road lay a motionless object that bristled all over with sharp quills, which resembled arrows.

That done, I wrapped the tape around my arms carefully so that I looked like a porcupine with short, very sharp quills.

Mammals have all sorts of interesting and novel defense tactics: sharp quills, stinky spray, and clever camouflage, among others.

Growing along its back and from its front legs, are sharp quills.

They cause damage in this method by thrashing about and scratching prey with their sharp quills.

These fish can cause painful wounds with their sharp quills, or spines, located in front of their fins.

With a sharp quill, he made a notation.

It is an English of very black ink, sharp quills and fine handmade paper.

Intra-specific interactions consist of biting and attempts to injure adversaries with their sharp quills.