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The indri (/ ˈ ɪ n d r i / ⓘ; Indri indri), also called the babakoto, [8] is one of the largest living lemurs, with a head-body length of about 64–72 cm (25– 28 + 1 ⁄ 2 in) and a weight of between 6 and 9.5 kg (13 and 21 lb). It has a black and white coat and maintains an upright posture when climbing or clinging.
Olfaction is particularly important to lemurs, [2] except for the indri, which lacks most common lemur scent glands and has a greatly reduced olfactory region in the brain. [78] Olfaction can communicate information about age, sex, reproductive status, as well as demarcate the boundaries of a territory.
Female dominance amongst lemurs is when the females are sexually monomorphic and have priority access to food. Lemurs live in groups of 11 to 17 animals, where females tend to stay within their natal groups and the males migrate. Male lemurs are competitive to win their mates which causes instability among the other organisms.
They're notable for their diversity of size — from the indri, the largest living lemur at up to 20 pounds, to the Madame Berthe's mouse lemur, the world's smallest primate, weighing about 1 ...
This could grant female lemurs greater access to resources and mates. [16] During breeding seasons, these enhanced traits might facilitate access to high-quality mates, ensuring reproductive success. This temporary masculinization is often regulated to ensure that it does not disrupt the female's overall reproductive health. [1] [12]
They have fewer premolar teeth than other lemurs, with the dental formula of: 2.1.2.3 2.1.2.3 Females and males usually mate monogamously for many years. Mostly at the end of the dry season, their four- to five-month gestation ends with the birth of a single offspring, which lives in the family for a while after its weaning (at the age of five ...
The largest known subfossil lemur was Archaeoindris fontoynonti, a giant sloth lemur, which weighed more than a modern female gorilla. The extinction of the largest lemurs is often attributed to predation by humans and possibly habitat destruction . [ 2 ]
Male and female reproductive systems of the spotted hyena. In mammals, all intact developmentally typical males have a penis, but the clitoris in the females of the following species is sufficiently enlarged that it is usually termed a pseudo-penis: spotted hyena, [1] [2] juvenile fossa, [3] binturong, [4] lemur [5] and spider monkey.