They may consume small shrimp and can be highly aggressive.
They are highly aggressive towards other members of their own species outside the breeding season.
They are alert and nervous, being highly aggressive if disturbed.
Judging by some of his recent campaigns, he is highly aggressive, but not always successful.
Most classrooms include at least one highly aggressive child who tries to have his way by bullying.
A Federal court decision called him a "highly aggressive and abrasive individual."
The additional treatments could not eliminate the cancer, which was highly aggressive.
Claimed benefits included making the patient highly aggressive and strong.
It wasn't until around March that he became highly aggressive.
He was highly aggressive but always kept his cool.