The civilian population, about 300 which includes children, was introduced in 2001.
Rodent populations were introduced by the Portuguese from early ships which visited the islands.
There are breeding eastern gray squirrels in Nova Scotia, but it is not known if this population was introduced or came from natural range expansion.
A population of Himalayan snowcock was introduced from Pakistan, and is thriving among the high cliffs.
A small population has also been introduced to parks in Lima.
The Hawaiian population is endangered due to habitat loss and probably also introduced predators.
A population in the Salton Sea was introduced in 1950, and now thrives there.
It is suspected that this population was introduced to the island in the 1930s.
Also a large population of white-tailed deer, which are hunted for meat and sport, has been introduced to coastal areas.
The original millipede population was collected by hand by the neighbourhood community and introduced in large numbers into the quarry.