These earthworms, which can grow up to 2 feet long, were introduced to the island in the 19th century. They quickly thrived in the island's moist climate, and their burrowing activity has led to significant changes in the soil.
The earthworms have helped to improve the drainage of the soil, which has made it more fertile and easier for plants to grow. This has led to the spread of vegetation on the island, which has in turn created a more hospitable environment for other animals.
In addition, the earthworms' burrows have helped to create a network of channels that allow water to flow more easily through the soil. This has reduced the risk of flooding and has made it easier for plants to get the water they need to survive.
Overall, the introduction of giant earthworms to the Isle of Rum has had a positive impact on the island's ecosystem. They have helped to improve the soil quality, create a more hospitable environment for plants and animals, and reduce the risk of flooding.
