Possible Clues:

• They may be low scavengers, but they don't sound low before they turn sane.
• Nocturnal carnivouous mammals of Asia and Africa
• Dog-like animals with laughter sounds
• Animal whose cry sounds like wild laughter
• Noted scavengers
• Dog-like animals with cry like human laughter
• Drunken women heard - their laughter is notorious
• Has longing to visit some of Serengeti's predators?
• 'All hygienes have their -' (Vladimir Nabokov)
• Howling hunters