The ancestors of ostriches and emus were long-distance fliers. Here's how we worked this out

Aside from being a delight to watch, flight in birds is regarded by many cultures as a symbol of freedom, and a source of ...

Ostrich, Emu Ancestors Could Fly, Scientists Discover

It may sound like a joke, but scientists have long been puzzled by how the family of birds that includes African ostriches, Australian emus and cassowaries, New Zealand kiwis and South American rheas ...