Most dog aggression is caused by fear, and an aggressive dog may have been hit numerous times in its short life, so it will interpret any object such as a newspaper being waved about as a threat.
That said, I wonder if diversity's primary focus on addressing historical inequalities like race, ethnicity, gender, and income has factioned off into an highly sensitive and blindly reactive group, a soft society that reduces complex issues into hyperbolic catchphrases, and a word, body language, or mind-read aggression is cause for moral outrage.
I daresay that Piazza's reaction was caused by nothing other than paranoia and this caused him to expect nothing other than aggression from Clemens.
It is plausible that aggression might be caused by reduced exercise, but only aggression specific to household members, not other dogs or people, was associated with lower odds of walking daily; thus the association with aggression to household members is more likely to be due to problematic behaviour that can weaken the dog-human bond.
Sunshine, he says, leads to an increase of serotonin, sudden boosts of which can lead to increased irritability, while aggression can be caused by frustration and an inability to control things - such as our temperature.
"Addiction" and gender were raised by two mothers, whose sons' aggression was seemingly caused by attempts to interfere with their "obsession" with playing video games.
Out of the nine instances of aggression following a vocalisation, four were caused by high-ranking females, three by high-ranking males, and two by low ranking males.
Lesions of mechanical origin may be caused by aggression, particularly in the hatchery stage, because of suboptimal conditions such as insufficient feeding.
β-adrenergic receptor antagonists (that is, propranolol) are somewhat effective in the treatment of aggression and agitation, which may be caused by NE overstimulation [ 72, 73], while antidepressants inhibiting NE reuptake, such as the tricyclic imipramine, have been used to treat depression, which may be caused by NE deficiency [ 74].
No deaths were caused by male aggression.
