Why the Largest Flying Bird Ever Could Barely Flap Its Wings
Picture a wingspan wider than a small plane’s propeller arc, shadow skimming the sea, wing joints hardly moving at all. That’s the paradox of deep time’s aerial giants: the bigger they were, the less they flapped. Paleontologists have spent decades untangling how creatures like Pelagornis and Argentavis ruled the air by surrendering much of the ...
