1. Parasitism Ticks Bird infested with ticks. The ticks benefit but the bird is harmed Different types of ticks that are parasites.(Beware)

2. Explaining parasitism. Parasites can harm humans,animals,and even your house. Ticks attach themselves to humans and your pets and they feed off your blood. Bed bugs are the parasites that ruin your house. They live in your bed and bite you while you sleep.

3. Recent stories about ticks Recently a study has documented a rapid growth in Canada of ticks that can cause Lyme disease, and they think global warming is might be a factor.