What characteristic feature is likely to be seen in strepsirhines when observing their teeth?

The tooth comb is a distinctive feature found in strepsirhines, which are a subgroup of primates that include lemurs and lorises. This adaptation consists of closely spaced lower incisors and canines that are oriented forward and are used primarily for grooming. The tooth comb facilitates efficient picking of debris, including dirt and ectoparasites, from fur, which is crucial for maintaining hygiene and social bonding among these animals.

Strepsirhines possess this characteristic feature due to their evolutionary adaptations to their environment and lifestyle. The tooth comb aids in grooming behaviors that are not just about cleanliness, but also serve as a social function, helping to strengthen relationships within groups by promoting bonding through mutual grooming.

Other features, such as diastema, incisor wear, and cusp shapes, are not as specifically associated with strepsirhines and may vary among different primate groups. While they may be observed in various primate species, they do not define the unique dental adaptation seen in strepsirhines.