From the Los Angeles County Natural History Museum display based on parts of a skeleton of the biggest known bird that ever flew.
Looming over the entrance hall, a black silhouette of Argentavis magnificens spans its wings over 8 m (about 25 ft.) and stands 3.5 m from tip of tail to end of beak.
This is almost twice the size of Teratornis merriami which, until now, had been considered the largest size to which flying avians could evolve.