The flying relatives of ostriches and emus

As I discussed in my previous two posts, paleognaths are a group of birds that includes large-bodied flightless species such as ostriches, emus, cassowaries, and the extinct moas and elephant birds, as well as the small flightless kiwi and the quail-like tinamous. Molecular phylogenetics suggests that these predominantly flightless birds descended from birds that were …

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