natural enemy

Sometimes I think they are the natural enemies of women.

I learned as a boy, government is the natural enemy of the people.

What kind of power brought those two natural enemies together?

But there are ways to deal with the natural enemies of summer.

Every living thing has a natural enemy in its own environment.

Men start at the notion of a natural enemy, and ask no other question.

Now almost everyone has a certain "natural enemy" if I may call it that.

They live well into their teens and have few natural enemies.

Had he given one of his natural enemies, an undergraduate, a hold over him?

They are plants from other parts of the world, with no natural enemies here to control their growth.

They have enough natural enemies without bringing dogs in here.

No natural enemies until van Neck and his kind showed up.

For all species, the most significant threats come from people, but they also face many natural enemies.

Until now, he said, the scales have had no effective natural enemies in this country.

Much more can be done to improve the conservation of natural enemies in the field.

It has no natural enemies in California, and its numbers are exploding.

Like a wolf and a tiger, they were natural enemies.

On his own worlds, in a sense, man had no natural enemies, save perhaps himself.

Very little is known about natural enemies of this viper.

They have few natural enemies and are protected against hunters by law.

They have a lifespan of about 60 years with no known natural enemies.

Pepper looked upon him, a giant male, as a natural enemy.

"Afghans are not the natural enemies of America," he said.

All their lives his kind had been their natural enemies.

To declare war on other countries, the president or congress of the country proposes a Natural enemy law.