Rhea
South America's sprinting ratites
Mating Social Behaviors
Harem-Based
One dominant male maintains exclusive mating access to a group of females
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Animals
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Harem-Based Animals
Knight Anole
Cuba's bold, tree-top "knight" lizard
Eastern Meadowlark
The flute-voice of open fields
Dickcissel
Prairie singer, South America traveler
Hippopotamus gorgops
The high-eyed hippo of deep time
Embolotherium
Asia's Eocene battering-ram giant
Equus giganteus
Big horse of Ice-Age America
Waterbuck
Ringed rump, river-edge ruler
Emperor Angelfish
Reef royalty in stripes and rings
Urial
Horns of the high dry hills
Olympic Marmot
Olympic Mountains' whistling burrower
Sichuan Takin (Tibetan Takin)
The cliffside bovid of Sichuan
Black Sea Bass
Wreck-hugging bass of the Atlantic
Roosevelt Elk
Rainforest Giants of the Pacific Coast
Hogfish
The pig-snout prowler of the reef
Aoudad Sheep
Shaggy-chapped climber of the cliffs