Island gigantism

Island gigantism is a type of evolution that can happen when animals live on an island. On an island, there are fewer predators, so some animals grow bigger than they do on the mainland. They also tend to the biggest of their species. It's like when a group of people are together, and the tallest one stands out from the rest. Island gigantism happens when the biggest animals are the ones that can survive the best on the island, so over time their size increases.