
08/08/2021
"...New data clearly shows that the positive behavioral effects that were expected from neutering did not occur, and if anything, the behaviors of neutered male dogs tended to be considerably less desirable. Of the 100 behaviors assessed, 40 showed statistically significant differences between the castrated and intact dogs."
https://www.psychologytoday.com/ca/blog/canine-corner/201805/neutering-causes-behavior-problems-in-male-dogs
Neutered male dogs are more likely to show aggression and fear-related behavior.