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Avahi
Avahi laniger, adult female and infant,I PCW1
Eastern Woolly Lemur (Avahi laniger)
Scientific Classification
Kingdom Animalia
Phylum Chordata
Class Mammalia
Order Primates
Family Indriidae
Genus Avahi

Avahi or woolly lemurs also known as avahis or woolly indris, is a genus of strepsirrhine primates. Like all other lemurs, they live only on the island of Madagascar.

With a body size of 30 to 50 cm and a weight of 600 to 1200 g, the woolly lemurs are the smallest indriids. Their fur is short and woolly. The body can be grey brown to reddish, with white on the back of the thighs, with a long orange tail. Their head is round with a short muzzle and ears hidden in the fur.

The woolly lemurs can be found in both humid and dry forests, spending most of their time in the leafy copse. Like many leafeaters they need long naps to digest their food. Woolly lemurs live together in groups of two to five animals, which often consist of parents and several generations of their offspring.

Like all indriids, the woolly lemurs are strictly herbivorous, eating predominantly leaves, but also buds and, rarely, flowers.

Males and females live in pairs. Although likely, the presence of extrapair copulations (which exist in other pair-living nocturnal lemurs, the Masoala Fork-crowned Lemur (Phaner furcifer) and the Fat-tailed Dwarf Lemur (Cheirogaleus medius) has never been demonstrated in Avahi species. The gestation period is four to five months, with births usually coming in September. In the first few months, the young rides on the back of its mother. After approximately six months it is weaned, and can live independently after a year, although it will typically live for another year in proximity to its mother. Overall life expectancy is not known.

On November 11, 2005, a research team that discovered a new species of woolly lemur in 1990 in western Madagascar named the species, Bemaraha Woolly Lemur (Avahi cleesei), after actor John Cleese, in recognition of Cleese's work to save lemurs in the wild. In 2006 a taxonomic revision of eastern avahis based on genetic and morphological analyses led to the identification of two extra species: the Southern Woolly Lemur (Avahi meridionalis) and Peyrieras' Woolly Lemur (Avahi peyrierasi). Further taxonomic revision increased the number of species, by adding the Ramanantsoavana's Woolly Lemur (Avahi ramanantsoavana) and Betsileo Woolly Lemur (Avahi betsileo). Finally a new species was discovered in the Masoala peninsula, Moore's Woolly Lemur (Avahi mooreorum).

Species

Betsileo Woolly Lemur (Andriantompohavana et al., 2007) (Avahi betsileo)
Bemaraha Woolly Lemur (Thalmann & Geissmann, 2005) (Avahi cleesei)
Eastern Woolly Lemur (Gmelin, 1788) (Avahi laniger)
Southern Woolly Lemur (Zaramody et al., 2006) (Avahi meridionalis)
Moore's Woolly Lemur (Lei, 2008) (Avahi mooreorum)
Western Woolly Lemur (Lorenz von Liburnau, 1898) (Avahi occidentalis)
Peyrieras' Woolly Lemur (Zaramody et al., 2007) (Avahi peyrierasi)
Ramanantsoavana's Woolly Lemur (Zaramody et al., 2006) (Avahi ramanantsoavani)
Sambirano Woolly Lemur (Thalmann and Geissmann, 2000) (Avahi unicolor)
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