In spotted-hyena families, ladies rule the roost. Females are bigger and stronger, winning the spots in the pack hierarchy and intimidating the males. The guys are so afraid of the females that fathers will take commands from their little girls. If a dad behaves nicely, his daughters will treat them kindly when they become adults. Credit: Thinkstock
Females are about three times larger than males, have more muscle mass and are more aggressive due to an excess of testosterone in their bodies. Hyenas have a range of vocal sounds, including one that sounds like laughter when they are excited.