* Orcas (Killer Whales): Orcas are known to prey on dolphins, especially in areas where dolphins are abundant.
* Sharks: Some species of sharks, like Great Whites and Bull Sharks, can and do prey on dolphins, although it's not a common occurrence.
* Other Whales: Larger whales, such as Sperm Whales and Humpback Whales, might occasionally prey on dolphins.
It's important to note that dolphins are typically at the top of the food chain in their ecosystems. They are strong and intelligent animals, and they usually have good defenses against predators.