You probably think that all birds can fly. Not true. Ostriches are the only bird that can’t fly.
They are part of a group of flightless birds called ratites, which also includes rheas, emus, cassowaries, and kiwis. Their name means “raft” in Latin (ratis) because their breastbone is shaped like a flat raft.
Ratites, unlike most birds, don’t need to fly to survive, as they are able to defend themselves due to their size and incredible running ability. Ostriches can run up to speeds of 45 miles-per-hour.

Ratites also have a special feather called a “plume feather.” These feathers are unlike bird-of-flight feathers because they lack the microscopic barbs that hold the feather together. Plume feathers appear to be hair-like and breezy, which helps them to move through the wind when ratites are running fast.
Left, Ostrich Dance.
Since ancient times, people have decorated themselves with ratite plumes and used ratite eggshells to create water bottles and dishes. The ancient Egyptians even trained ostriches to pull carts.

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