Pets can and do escape from their owners. Out in the wild, they mate with others and produce offspring that challenge the native animals, reduce their food supplies, and become pests. This article about Florida (U.S.) discusses this problem.
http://www.tcpalm.com/news/2008/jan/24/fwc-looking-adopters-non-native-pets/
Why should we ban people from having non native animals as pets (Australia)
1 answer