the tiger mosquito is an example of an alien species.
this kind of mosquito is common in Asia, but in recent years it has moved to parts of southern Europe.
Scientists believe that the eggs of this insect probably arrived inside some car tires that were filled with water.
in a few years, the mosquitoes multiplied and spread over large areas of Italy and other countries.
tiger mosquitoes can reproduce faster than the common European mosquito, so they quickly replaced a large percentage of the native mosquitoes.
though they do not cause serious disease in humans, tiger mosquitoes are a serious nuisance.
they are far more aggressive than common European mosquitoes, and the affects of their bites are worse.