I never thought much about ticks until I started picking them off the dogs by the dozen. The Belgian lady currently living in our future home is in Zambia collecting ticks for research. Imagine trying to clear customs with a suitcase jammed with ticks! (She says she will ship them separately. I still like to picture the scene at customs.)
Different types of ticks must have different seasons. Earlier we found a lot of fatties that congregated on the dogs' backs, but lately it's tiny ones in their ears. You have to be really quick to tweeze those suckers. Happily for us, none of the ticks seem to enjoy humans. Mosquitoes, on the other hand, have been dining on us like crazy.