Bull thistles are invasive plants that can quickly take over a garden.

Cowboys use bull ropes to secure themselves while riding bulls.

Bull ants are known for their aggressive behavior and painful stings.

Bull sharks are known for their aggressive behavior.

The bull-pups were playing in the yard.

The farm had several bull-bitches in the pasture.

He used a bull horn to amplify his voice.

He used a bull-horn to amplify his voice.

He was a bull-necked man with a powerful build.

Bull terriers are known for their playful and energetic nature.