Operative word being "researchers", here. Apparently the gender of researchers conducting experiments on rats has shown to change outcomes : https://www.nature.

Operative word being "researchers", here. Apparently the gender of researchers conducting experiments on rats has shown to change outcomes : https://www.nature.com/news/male-researchers-stress-out-rodents-1.15106 https://www.nature.com/news/male-researchers-stress-out-rode...