Air sac cannulas are indicated in birds with upper respiratory obstruction or for ventilation during surgical procedures involving the head and neck. Proper technique, knowledge of potential ...

Speaking to Interesting Engineering (IE), Schachner said, “air sacs and pulmonary diverticula evolved long before there were flying birds.” She said that even reptiles like snakes have ...

That’s because spring is when most birds turn to family obligations—they mate, build nests, lay eggs and raise young. Why do ...

Aside from their strange horns, these birds also possess some interesting anatomy below the surface. Inside their bones and skin are tons of tiny air sacs that reduce the weight of these large ...

It also connects to the bird’s air sac system, which, in turn, connects to its lungs. The powerful flight muscles of the shoulder attach to the keel, a special ridge of bone that runs down the ...

The rare dancing grouse of the Southwest, called the lesser prairie chicken, is known for the males' elaborate calls and showy displays of reddish-orange air sacs while they perform mating dances on ...