The phrase "aggressive poses" is correct and usable in written English.
It can be used to describe physical postures or attitudes that convey hostility or assertiveness, often in contexts related to animals, sports, or body language.
Example: "The dog displayed aggressive poses, warning the intruder to stay away from its territory."
Alternatives: "hostile stances" or "defensive postures".
Two snarling guardians at the entrance, Tandrin in red and Dorje in blue -- their hard lacquered exteriors damaged so that the innards of straw are exposed -- are still vital in their aggressive poses.
From its center, surrounded by a group of boys striking aggressive poses, a black man several times larger than life stared out, pointing with what appeared at first to be a shotgun.
"They're being mounted in more aggressive poses than they were 50 years ago," he explains.
The white superheroes have more powerful and aggressive poses.
When or if Mrs. Clinton reassumes a more aggressive pose is also a function of what Mr. Giuliani does and says.
Mr. Mack, however, was eager to strike a more aggressive pose when he took over from Mr. Purcell, who had been criticized for his cautious approach.
With large brown eyes and a brunet mane, Ms. Rak has a face that is more gentle and friendly in person than on her Web site, where she strikes an aggressive pose, with waist-high fishnets, unzipped leather jacket and "What about it?" expression.
Male swans are highly territorial and first threaten intruders, striking an aggressive pose with wings arched over their back, before charging at them to chase them off.
Although there's no menace to their interaction -- neither animal strikes an aggressive pose -- it should of course be mentioned that this conflict might have been avoided completely, had the people behind the camera let the cat inside instead of filming the confrontation.
From his bunker, Mr. Castro wrote that, in the event of an American invasion, "the danger that that aggressive policy poses for humanity is so great that following that event the Soviet Union must never allow the circumstances in which the imperialists could launch the first nuclear strike against it".
The rarity of this disease, with its aggressive features, poses a significant challenge in its treatment.
