Final answer:
Strepsirrhini primates use a grooming claw and a tooth comb for grooming, with species like lemurs being part of this suborder, primarily located in the Old World.
Step-by-step explanation:
Strepsirrhini primates, which make up one of the two main suborders of primates, utilize two distinct features for grooming themselves: a grooming claw and a tooth comb. These primates, often referred to as strepsirrhines, include species such as lemurs and lorises and are known for their arboreal (tree-dwelling) lifestyle. The grooming claw is found on the second toe and is used to maintain fur and skin health, whereas the tooth comb, formed by tightly packed incisors in the lower jaw, is used for grooming fur. Strepsirrhines are mainly located in the Old World regions of Africa, Asia, and Europe, with many species endemic to Madagascar. These features help them in maintaining their fur by scratching and nibbling.