The Golden Bamboo Lemur (Hapalemur aureus) is a medium-sized bamboo lemur endemic to south-eastern Madagascar. As its name indicates, this lemur feeds almost exclusively on grasses, especially the giant bamboo or volohosy (Cathariostachys madagascariensis) feeding on new shoots, leaf bases and the creepers.The growing shoots of this bamboo contain 0.015% (1 part in 6667) of cyanide. Each adult lemur eats about 500 g (18 oz) of bamboo per day, which contain about twelve times the lethal dose of cyanide for most other animals of this size.They live in small groups of two to six individuals and have a home range of up to 80 hectares (0.31 sq mi). but usually move less than 400 m (1,300 ft) in a day. Females have a gestation period of approximately 138 days and give birth to one infant (occasionally two) at the beginning of the rainy season, in November or December. The young are highly dependent on their mothers and are kept hidden in dense vegetation for the first two weeks

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