The world of the red sun evidently harbored a high-powered and aggressive breed which did not tolerate trespassers on what it considered its exclusive domain.

The geneticists who'd designed her species had wanted an aggressive, energetic, territorial breed.

This is a strong-willed and sometimes rather aggressive breed, which needs firm handling from puppyhood.

Those people are a pretty aggressive breed, and I can't believe it's much different over here.

Over the last several years, New World had come to represent a new, aggressive breed of independent studio.

The Boxer by nature is not an aggressive or vicious breed.

They are not considered an aggressive breed.

Although recent studies do not rank Doberman Pinschers as the most aggressive breed, their size, strength and aggression towards strangers makes them potentially dangerous.

Some of the dogs came from aggressive breeds, not suitable as guide dogs.

She received a sharp reprimand from a judge, she said, because her dogs are considered an aggressive breed.