A ratite (/ˈrætaɪt/) is any of a group of mostly flightless birds within the infraclass Palaeognathae. They are mostly large, long-necked, and long-legged...

This is a list of ratites. Extinct (EX) – No known living individuals Extinct in the wild (EW) – Known only to survive in captivity, or as a naturalized...

ability to fly. There are over 60 extant species, including the well-known ratites (ostriches, emus, cassowaries, rheas, and kiwis) and penguins. The smallest...

representatives are often known as ratites), and their closest living relatives are kiwi (found only in New Zealand), suggesting that ratites did not diversify by vicariance...

didinus) is an extinct species of moa that was endemic to New Zealand. It is a ratite, a grouping of flightless birds with no keel on the sternum. It was the...

infra-class Palaeognathae, a diverse group of flightless birds also known as ratites that includes the emus, rheas, cassowaries, kiwis and the extinct elephant...

extant branches of flightless lineages (plus two extinct clades), termed ratites, and one flying lineage, the Neotropic tinamous. There are 47 species of...

sister group to ratites. The nine species of moa were the only wingless birds, lacking even the vestigial wings that all other ratites have. They were...

(/ˈæptərɪks/). Approximately the size of a domestic chicken, kiwi are the smallest ratites (which also include ostriches, emus, rheas, cassowaries and the extinct...

Elephant bird was a ratite; it could not fly, and its breast bone had no keel. Because Madagascar and Africa separated before the ratite lineage arose, Aepyornis...