Dolphin populations vary widely across the globe, with different species inhabiting both coastal and open ocean environments. Some of the most well-known species include the bottlenose dolphin and the orca. These populations are influenced by factors such as habitat availability, food sources, and human activities. Conservation efforts are crucial for maintaining healthy dolphin populations. Threats like pollution, fishing practices, and habitat destruction can significantly impact their numbers. Organizations work to monitor dolphin populations and implement protective measures to ensure their survival in the wild.