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Elephant birds were flightless birds that went extinct around 1,000 years ago. It is believed that one species of the […] ...

As science is progressing, companies all over the world are working on de-extincting animals in a bid to ensure ...

Many birds fly, but some, like penguins and ostriches, don't, revealing an evolutionary twist. Flightless birds adapted to land or water when survival didn't require flying. Lacking a keel, crucial ...

The world is currently experiencing its sixth mass extinction, with potentially thousands of species lost every year. Bringing back woolly mammoths, dire wolves, and giant moa (or close approximations ...

The endangered kakapo is a flightless bird native to New Zealand. Its population is growing, but its parasites have dwindled.

Since last being sighted in 1662, the dodo has become the symbol of extinction.

Big, flightless birds like the ostrich, the emu and the rhea are scattered around the Southern Hemisphere because their ancestors once flew around the world, a new study suggests.

In flightless birds, the number varies widely— penguins have more than 40, while emus have none. It’s a deceptively simple rule that’s seemingly gone unnoticed by scientists.

Flightless birds like penguins and ostriches have evolved lifestyles that don't require flight. However, there's a lot that scientists don't know about how the wings and feathers of flightless ...