The Surprising Link Between Egg Shape and Bird Flight loading...
The Surprising Link Between Egg Shape and Bird Flight
For the first time, scientists have taken a closer look at how bird eggs are shaped—and made some unexpected discoveries.
Baby Bird from Time of Dinosaurs Found Fossilised in Amber loading...
Baby Bird from Time of Dinosaurs Found Fossilised in Amber
The 99-million-year-old hatchling from the Cretaceous Period is the best preserved of its kind.
Ravens Hold Grudges Against Cheaters loading...
Ravens Hold Grudges Against Cheaters
The canny corvids remember people who give them unfair deals, scientists have discovered.
Watch: Giant Wasp vs. Giant Spider Battle Ends With a Twist loading...
Watch: Giant Wasp vs. Giant Spider Battle Ends With a Twist
Video taken in Sydney, Australia, shows a large spider wasp carrying a Huntsman spider to its death—until a surprise visitor drops in.
Here's Why The World's Smallest Birds Are As Tough As Diamonds loading...
Here's Why The World's Smallest Birds Are As Tough As Diamonds
Hummingbirds are tough—so tough they've evolved a clever way of coping with the cold.
About Greater Rhea

These large South American birds roam the open pampas and sparse woodlands of Argentina and Brazil.

The greater rhea is the largest of all South American birds and is related to ostriches and emus. These flightless birds use their long, powerful legs to outrun trouble. Although their large wings are useless for flight, they are used for balance and for changing direction as the bird runs.

Fast Facts 

Type: Bird

Diet: Omnivore

Average life span in the wild: 15 years

Size: 3 to 5 ft (0.9 to 1.5 m)

Weight: 50 lbs (20 kg)

Group name: Flock
 

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