Fossils reveal largest airborne bird

Extinct avian may not have flapped, but it could glide

GETTING SOME AIR  The extinct P. sandersi (top) would have dwarfed modern-day fliers, including the California condor (bottom left) and the wandering albatross (right).

Liz Bradford 

A partial skull and a handful of other bones is all that’s left of the largest bird to ever take to the air.