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13 of the ugliest animals on the planet

Hyena

Photo: Stig Nygaard/Flickr

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Hyena

With a hunching, bear-like gait, these scavengers of the savannah aren't the prettiest animals on the planet, but at least they have a sense of humor. Occasionally referred to as "laughing hyenas", their calls are often described as haunting and witch-like.

Though they look like wild dogs, they are more closely related to civets, mongooses and meerkats.