A variety of human activities is forcing many marine species to venture across the oceans in search of new homes. A recent study by Ecology and Evolutionary Biology graduate student Samuel Mahanes and Associate Professor Cascade Sorte sheds new light on how climate change is likely to affect the movement of non-native marine life into more northern waters. Historically, a number of challenges have made it difficult for non-native marine species to enter high-latitude areas. These barriers have included competition from native marine life and water temperature. However, climate change has begun eroding these barriers, as described by Mahanes and Sorte. Follow-up studies will need to be conducted to determine the implications of increasing invasions for Arctic ecosystems.