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Ostrich (Struthio camelus)

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Consider the Ostrich

The flightless Ostrich is a bird of superlatives. It's the largest and tallest bird on the planet, growing to maybe eight feet tall, and weighing 250 pounds! It's also the fastest creature on two legs, capable of running at 40 miles an hour. Ostriches have never been observed to stick their heads... read more »

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Flightless Birds: Evolving the Inability to Fly

The ability to fly seems to define birds. But there are more than 50 species of flightless birds throughout the world — from the Ostrich and Kiwi to flightless rails, ducks, and this Humboldt Penguin. Why did they evolve the inability to fly? Many dwelt on islands. Others evolved until they were... read more »

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Topics & Themes:  flight

Elephant Birds Laid Really Big Eggs

What bird laid the largest eggs ever known? To date, the record holder is the now-extinct Elephant Bird, a relative of the present-day Ostrich and other large, flightless birds, including rheas, cassowaries, and kiwis. Up to the late 1600s, Elephant Birds lived on the island of Madagascar. But by... read more »

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Topics & Themes:  history
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