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Which mammals can be found on oceanic islands?

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polar bear and cubs — mammal Mother polar bear nursing her cubs (*Ursus maritimus*).

Mammals found on oceanic islands are primarily bats, which are often the only indigenous mammals present due to their ability to fly to isolated locations. Other mammals found on oceanic islands are typically non-indigenous species introduced by humans, either intentionally or accidentally.1234

These introduced populations often include:
* Domesticated animals: Such as goats, pigs, horses, and cattle.34
* Small mammals: Specifically rats and mongooses.34
* Other species: In some cases, monkeys have been introduced to island environments.5

While terrestrial mammals are limited on these islands, the surrounding marine environments often host a wide variety of marine mammals, including various species of whales, dolphins, and pinnipeds (such as seals and sea lions), which depend on the ocean for their survival.64