The burbot had no commercial value, and was an aggressive predator of young walleyes and northern pike.

Amberjacks are fast swimming and aggressive predators that often hunt in schools around offshore reefs.

This ability, together with their strong, sharp claws, allows many species to be fast and aggressive predators.

It is an aggressive predator.

But the aerodynamic design left the cheetah too small and short in the tooth to defend its catch against more aggressive predators.

As with all snakeheads, C. amphibeus is an aggressive predator.

Crabs in the Matutidae are aggressive predators.

It is home to many aggressive predators, and is therefore feared by Glimpses.

After several of the fish escaped from the hatcheries, they proved to be aggressive predators in Brazil's lagoons and mangrove swamps.

They are aggressive predators, with adult females willing to tackle prey as large as themselves.