Legend holds that a tortoise turned itself into this island to save two shipwrecked sailors.

This abandoned artificial island off the coast of New York City is now home to dozens of harbor seals.

This tiny island is home to the world's largest colony of Northern gannets.

A Japanese cat island also populated by the descendants of a band of banished samurai.

An eccentric aristocrat brought these Australian natives to their current Scottish home.

Off-limits and full of venomous pit vipers, Brazil’s Snake Island has a frighteningly apt nickname.

A wildlife paradise, this island is one of the world’s most important habitats for burrow nesting seabirds.

This tiny island protects a number of rare bird species by only allowing visitors to set foot on the beach.