*Why do rub their together?

• When you see a fly rubbing its legs together, it is cleaning itself, and scraping off some of the materials that has gathered there. A fly is an insect with a pair of well developed wings.

The common housefly is one on the best-known kinds of flies; a scavenger, it does not bite living animals but dangerous because it carries bacteria that cause many serious diseases such as typhoid fever, cholera and dysentery. The housefly feeds by depositing a drop of digestive liquid on its food, which may be food that has been left uncovered.

Disease can also be transmitted on the fly’s sticky foot pads and hairy body.

*Why do moths eat wool?

* There is a moth know as `The clothes moth’ and most people blame it for making moth holes in our clothes. But it isn’t the moth that does the damages at all. The moth never eats; it lives only to produce its eggs and then it dies. It is when the young moth is in the caterpillar stage that all the damage is done. The moth lays its eggs on wool fabrics and in about a week the eggs hatch into caterpillars. The caterpillar then makes a little case out of the wool, and lines this case with silk. There it lives as a caterpillar until it ready to emerge as a moth. So, you see that the problem of protecting clothes against moths is to make sure that moths have no chance of laying eggs on clothes.

*The false –headed butterfly has developed a special technique to reduce the chances of being eaten by other animals. It has a life-like false head on the back of its wings – complete with realistic ``eyes’’. ``legs’’ and ``antennae’’. Attacking birds are completely confused because the butterflies seem to be flying backwards!