Are zoos ethical in the modern age?

Encyclopedia of Opinion

Question: Are zoos ethical in the modern age?
Position1 of 2›: Yes, zoos are bad
Argument‹6 of 7›: Zoo animals attack people

There have been many reported cases of animals injuring people at zoos.

The argument

There have been many instances where zoo animals have attacked trainers and civilians, causing serious injuries or death. Even when making great efforts to keep the animals and people safe, attacks still occur. Zoos can never be completely safe, and people put themselves at risk each time they go. For example, a 4-year-old boy ran into a gorilla exhibit at the Cincinnati Zoo. The gorilla tossed the boy around until it was killed by the zookeepers.A trainer at SeaWorld was killed by an orca. The animal pulled her into the water and she drowned. A toddler fell off an observation deck into the wild African dog exhibit. He was immediately attacked and killed by the animals.

Premises

[P1]Zoo animals have repeatedly attacked and killed trainers and visitors despite safety precautions. [P2] No level of precaution can make zoos completely safe from such attacks. [P3] Subjecting humans and animals to this avoidable risk is ethically indefensible. [C] Therefore, zoos are unethical in the modern age.

Counter-arguments

All attacks by zoo animals are caused by human error. A majority of attacks occur when a person is in the animal's enclosure, within close proximity to the animal. The animal could feel threatened by having a person in their space, which provokes an attack. For example, a zookeeper was mauled by a tiger because the metal gate designed to isolate the animal was left open.

Rejecting the premises

[Rejecting P1] Humans provoke animal attacks. [Rejecting P3] Attacks at zoos rarely happen.