The phrase "curls up" is often used to describe the way a person or animal assumes a hunched or fetal-like position. However, there are a variety of synonyms that can be used to convey this same idea. These include "coils," "crouches," "nestles," "snuggles," "huddles," "nuzzles," "shrinks," and "snuggles down." Each of these words brings a slightly different connotation, with "coils" implying a more tightly wound physical position, while "snuggles" suggests a cozy or affectionate atmosphere. By experimenting with different synonyms for "curls up," writers can effectively convey the exact meaning they intend.