Island that was once part of a large landmass?

Madagascar is a large island located off the southeast coast of Africa. It is the fourth largest island in the world, after Greenland, New Guinea, and Borneo. Madagascar is thought to have been part of the supercontinent of Gondwana, which began to break up around 180 million years ago. Madagascar split from Africa around 165 million years ago and gradually drifted eastward. The island is now located about 400 miles off the coast of Africa.

Madagascar is a unique and fascinating island. It is home to a wide variety of plant and animal life, many of which are found nowhere else on Earth. The island is also home to a rich and diverse culture. Madagascar is a popular tourist destination and is known for its beautiful beaches, rainforests, and wildlife.