Bristol Zoo Gardens Experiment
The Bristol Zoo Gardens announced
it was conducting an experiment to gauge the sensory sensitivity of gorillas, hoping to find out "whether the scent of humans in a gorilla's environment can be picked up even after the humans have gone." The humans, however, would need to be naked in order to leave the strongest scent behind.
Christoph Schwitzer, Head of Research, explained: "We are monitoring the gorillas' behaviour following gardeners carrying out work on Gorilla Island – once fully clothed, as a control group, and again without clothes, to see if there is a significant difference."
The zoo later admitted that the experiment never took place, although it noted, "it is true that gorillas have a good sense of smell and are able to detect strong odours in their environment such as human sweat or the musk of an unknown gorilla."