The emu is the second-largest bird in the world, right after the ostrich– and like the ostrich, it can’t fly. Found in ...

Many people consider penguins to be among their favorite creatures on the planet. There’s something special about seeing a ...

and there are a number of species worldwide that are ground-based. The most common reasons birds have evolved to be flightless are a lack of predators or the development of an alternative skill ...

Think penguins only belong in icy Antarctica? Think again—these tuxedoed birds thrive on sun-soaked beaches, and I just met ...

The repeated evolution of huge birds is part of the dinosaurian legacy. Beaked birds were the only dinosaurs to have survived ...

More than 99% of birds can fly. But that still leaves many species that evolved to be flightless, including penguins, ostriches, and kiwi birds. In a new study in the journal Evolution ...

Illustration by TH Worthy and P. Scofield Of the 350 parrot species alive today, the heaviest is the kakapo, a flightless bird also native to New Zealand. But the extinct parrot, dubbed Heracles ...

The flightless moa birds endemic to New Zealand ... last 50,000 years are attributable to human actions." About 11,000 bird species now exist, occupying a dizzying array of ecological niches.

A new artificial insemination method helps rare Kākāpō parrots breed again, offering hope amid global bird decline.

These flightless birds weigh between 220 and 350 ... The wandering albatross has the largest wingspan of any living bird species. They typically measure around 8 to 11 feet, but the largest ...

Also flightless, the gooselike bird was endemic to the equally isolated ... The researchers also concluded that there was just a single species of dodo (Raphus cucullatus) and solitaire (Pezophaps ...