The Strepsirhini suborder includes lemurs and lorises. True False
The correct answer and explanation is:
True.
The Strepsirhini suborder includes lemurs and lorises. Strepsirhines are a group of primates characterized by certain primitive features that distinguish them from the other major primate suborder, Haplorhines, which includes monkeys, apes, and humans. Strepsirhines are often referred to as “wet-nosed” primates due to their rhinarium, a moist, naked nose similar to that of a dog or cat, which enhances their sense of smell.
Lemurs are native to Madagascar, and this group is well known for its diversity in size, behavior, and ecological niches. They typically have a strong reliance on their sense of smell, nocturnal activity patterns (although some are active during the day), and certain dental adaptations such as the tooth comb, which is used for grooming. The tooth comb is a defining feature of Strepsirhines.
Lorises are small, nocturnal primates found in parts of Southeast Asia and India. Like lemurs, they have characteristics associated with Strepsirhines, including the tooth comb and a keen sense of smell. They move slowly and deliberately through the trees and have adaptations suited to their arboreal lifestyle.
The Strepsirhines generally have a smaller brain relative to body size than Haplorhines, and their vision is more adapted for low-light conditions. Their reliance on olfactory cues and grooming behaviors is more pronounced compared to monkeys and apes.
In summary, lemurs and lorises belong to the Strepsirhini suborder, which is characterized by features like a wet nose, tooth comb, and nocturnal habits. These features differentiate them from the Haplorhini suborder, which includes more evolutionarily advanced primates such as monkeys, apes, and humans. Therefore, the statement that Strepsirhini includes lemurs and lorises is true.