1.   Early colonists ravaged native populations with syphilis and typhoid.

2.   Alternatively, the disease may have been around for years and is only now able to ravage populations weakened by other factors.

3.   But while scientists lament having to stand back and watch these diseases ravage coral populations, they note that sometimes no treatment can be the best cure.

4.   Hess spent his life researching how to prevent and control the kinds of diseases that, if unleashed, can quickly ravage populations of domesticated animals.

5.   Mountain lions, greatly increased in number, have ravaged bighorn populations in several parts of the West, but especially in California.

6.   President Thabo Mbeki and his government now need to make their country the world leader in treating a disease that is ravaging the population.

7.   Two kinds of mites have been ravaging bee populations in the United States for the past decade, and my bees are not immune.

8.   Widespread spraying of DDT ravaged populations of the imperial moth, Simmons said.