1.   In the tiger, nature has produced the perfect hunting machine.

2.   Nature produces many chemicals in two forms that are mirror images of each other - so-called left-handed and right-handed molecules.

3.   The formal adversarial nature of arbitration produces some strange effects.

4.   But in yet another part of the world the will to prove that man is more important than nature has produced an even taller edifice.

5.   Fact is, nature produces no bad colors.

6.   The skeptics say raw nature has already produced so many germs that haunt humans in horrifying ways that warriors have no reason to create new ones.

7.   Why has nature produced so many more insect specn mammals and birds?

8.   With ingenuity and powerful new computers, they simulated the cataclysmic process that nature produces with ease, creating the long-sought theoretical model for the colossal explosions.

9.   Aggressive nature has produced an equal share of birdies and disasters.