Gaea, the Earth.
Gaia (Earth) and Ouranos (Sky).
Rheas relatives
No, rheas are native to South America. Yugoslavia is a country in Europe that no longer exists, as it dissolved in the 1990s and its territories are now part of different countries such as Croatia, Serbia, and others.
Uranus and Gaia
South America
yes
Rheas, Emus, and Ostriches are all a part of the Ratite family; a family of large flightless birds
They have feathers
Ops or Opis.
Anonymously
native to south america
1,7m (5.6 feet)