On July 2, 1937 in Atlanta,Georgia, the first steel cage match took place and consisted of chicken wire surrounding the ring to prevent interference.

Cage-free chickens in Harold Sensenig's barn near Hershey, Pa., get to roam and perch on steel rods, but they don't go outside. Dan Charles/NPR hide caption ...

Chickens naturally flock together, and each of the new colony cages provides plenty of room for 10 hens to move around, flap their wings and lay down to sleep, Beachler said.

This is one reason more chickens died in the cage-free house — more than 10 percent, compared with about 4 percent in the cages. Most died from disease, but some also died because of injury or ...

Some producers are adding more cage-free houses to their operations. But scientists are still trying to measure whether cage-free chickens are really better off. What The Rise Of Cage-Free Eggs ...

Some producers are adding more cage-free houses to their operations. But scientists are still trying to measure whether cage-free chickens are really better off. Search Query Show Search ...