Captive animals are deprived of everything that is natural and important to them, and as a result, they become bored and lonely and many even suffer from a condition called “zoochosis.” If you’ve ever witnessed a captive animal rock and sway back and forth, you’ve seen the disease firsthand. This condition is so rampant in zoos that some zoos give animals a mood-altering drug, such as Prozac, because the public has started to catch on.
Some animals are so unhappy that they risk their lives in desperate attempts to free themselves. At the Dallas Zoo, a gorilla named Jabari tried to escape by jumping over the walls and moats of his enclosure, only to be fatally shot by police. A witness later confessed that teenagers were taunting him by throwing rocks.
Animals are unable to thrive in small enclosures, especially with unnatural weather and climates. For example, elephants typically walk up to 30 miles in just one day, but Lucy, the lone elephant at the Edmonton Zoo, is locked inside a barn when the zoo is closed and during Edmonton’s frigid winter months, which means she spends most of her time indoors, without much room to move. The near-constant confinement because of the harsh weather has caused Lucy to develop painful arthritis.