User:Psychstudent20/Growling

functions of aggressive growling
There is an evolutionary aspect to growling as well, with crustaceans evolving over the years in various aspects. The ghost crabs use their gastric mill, which is composed of lateral and medial teeth, to imitate the sound of growling. The growling is used while the ghost crab takes an aggressive stance, which is followed by lunging, they also use their claws to produce a similar sound that is instead used in courtship. Although horses have been raised as farm animals for many centuries now, they still retain their instinctual responses to predators with, farm raised houses were found to still have anti-predation reactions like being alert to growls of leopards from their original ancestral home.

There is an environmental aspect to feline aggression with household cats that were in environments that were agonist with their owners, were more likely to have aggressive behavior like growling towards their owners.

Growling in Canines
Weight in household dogs is something that fluctuates between owners and has effects on their aggressive behavior with, overweight dogs were more likely to be growling when around strangers or other dogs when compared to non-overweight dogs. Overweight dogs would also be more protective over their own food and more willing to steal food then non-overweight dogs, by using aggressive growling.