Anatomy and Physiology
The golden-crowned sifaka is one of the smallest sifaka species with a weight of 3.4 to 3.6 kg (7.5 to 7.9 lb), a head-body length of 45 to 47 cm (18 to 19 in), a tail length of 42 to 47 cm (17 to 19 in), and total length of 87 to 94 cm (34 to 37 in). It is comparable in size to the sifakas inhabiting the southern and western dry forests, such as Coquerel's sifaka, the crowned sifaka, Von der Decken's sifaka, and Verreaux's sifaka. It has a coat of moderately long, creamy-white fur with a golden tint, dark black or chocolate-brown fur on its neck and throat, pale orange fur on the tops of its legs and forelimbs, a white tail and hindlimbs, and a characteristic bright orange-gold crown. It is the only sifaka with prominent tufts of white fur protruding from its ears, making its head appear somewhat triangular and distinctive in appearance. Its eyes are orange, and its face is black and mostly hairless, with dark gray-black fur with white hairs stretching from beneath the eyes to the cheeks. Its snout is blunt and rounded, and its broad nose helps to distinguish it from other sifakas. Occasionally the bridge of the nose will have a patch of white fur. Similar to other sifakas, this arboreal animal has long, strong legs that enable it to cling and leap between tree trunks and branches.
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