Ocean currents play a significant role in influencing marine life in various ways. They help regulate water temperature and nutrient distribution, which are crucial for the survival and growth of marine organisms. Ocean currents also impact the movement and distribution of plankton, which form the base of the marine food chain. Additionally, currents can affect the migration patterns of marine species and help disperse larvae to new habitats. Overall, ocean currents have a profound impact on the biodiversity and productivity of marine ecosystems.