The loose skin of the sun bear, particularly around the neck, is an evolutionary trait and defense mechanism. If caught by a predator, the loose skin allows the sun bear to spin its head around and bite its attacker.
Although tigers and other large cats are potential predators, the main predator of sun bears by far is man. Commercial poaching of bears for the wildlife trade is a considerable threat in most countries and sun bear meat is eaten by indigenous people on the island of Borneo.
The median life expectancy for sun bears is about 25 years, but Dresena, a resident of Reid Park Zoo in Tucson, lived to the ripe old age of 34 years.
They spend a lot of time in tree canopies and even build "beds" of twigs and leaves on the branches to sleep in.
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