Their distinctive, flattened tests and tiny spines were adapted to life on or under loose sand.

Impaled his naked body with thousands of tiny stinging spines.

The striped Raphael catfish also has tiny and curved protective spines running along its body.

The coral appears rough-textured because of tiny spines that cover the surface between the corallites.

But the fine fuzz of tiny spines that covered it in life are not present.

A sand dollar uses its tiny spines to move around, and to dig into the sand.

The stems have many sharply toothed leaves lined with tiny spines.

Caution: handling any cactuses is difficult because of the tiny spines.

The tiny spines would become embedded in the woolen threads.

When mature, the fruit may grow tiny spines, and contains numerous edible green seeds.