The Great Apes House
The Bronx Zoo - The Bronx, NY (1963)
There was once an exhibit in The Bronx Zoo called "The Most Dangerous Animal In The World". It was on display in The Great Apes House between the orangutan and mountain gorilla cages. The sign at this exhibit read:
You are looking at the most dangerous animal in the world. It alone of all the animals that ever lived can exterminate (and has) entire species of animals. Now it has the power to wipe out all life on earth.Above this caption was a mirror behind a set of bars.
Source: The Illustrated London News (6/08/1963) via Flashbak.com