| In order to control parasites, the goats would be drenched with anthelmintics. |
| Parasitic worms have evolved with their human hosts over thousands of years, and as successful parasites, do not kill their hosts. |
| Every living creature, including plants, must contend with the ravages of diseases and parasites. |
| Most of the leeches found in our lakes are parasites feeding on the body fluids of fish. |
| But the scientists cautioned that biological control of pests is risky if the parasites are not specific to the target pest. |
| The causes for chewing wood can be tooth problems and teething, stomach or intestinal parasites or mineral deficiency. |
