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Ostriches Are The Largest And Fastest Flightless Bird In The World, And A New Study Suggests That It May Be Because They Have Two Knees On Each Leg

Ostriches are the largest bird in the world, and also the fastest (on land anyway). This seems like a contradiction, but it is true. These birds can run up to 69 kilometers per hour (43MPH) even ...
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The Common Ostrich Is The World’s Largest Bird

The ostrich is an extraordinary creature, not only because it is the largest bird on the planet but also due to its unique adaptations and intriguing behaviours. Native to Africa, the ostrich is ...