What is the only existing mammal in the Cayman Islands?

The only existing mammal in the Cayman Islands is bats. Specifically, the Cayman Islands are home to the native Jamaican fruit bat, which is a significant part of the island's ecology. Bats play an essential role in pollination and seed dispersal, contributing to the health and regeneration of the islands’ tropical ecosystems. Unlike the other options listed, which include introduced species or domesticated animals that have not been endemic to the islands, bats have established themselves as the sole native mammal. This unique status highlights the distinct environmental characteristics of the Cayman Islands and the importance of conservation efforts for their native wildlife.