Palaeognathae (meaning ‘old jaws’) is a small group of birds which includes several species that have evolved flightlessness and gigantism, such as emus, ostriches, and the now-extinct giant moa.
Palaeognath birds. Image credit: Bernard…
Palaeognathae (meaning ‘old jaws’) is a small group of birds which includes several species that have evolved flightlessness and gigantism, such as emus, ostriches, and the now-extinct giant moa.
Palaeognath birds. Image credit: Bernard…