Here's what we know:
* Larger sharks are capable of preying on dolphins. This includes species like great whites, bull sharks, tiger sharks, and oceanic whitetip sharks. However, even these large predators generally prefer other prey like seals, sea lions, or fish.
* Dolphins are very agile and intelligent. They have powerful sonar and can detect approaching threats, making them difficult prey for sharks.
* Dolphin pods are social and protective. They will work together to defend themselves against predators, often deterring attacks.
It's important to remember:
* Most shark attacks on dolphins are opportunistic. This means they happen when a shark encounters a sick or injured dolphin, or a young or separated dolphin.
* Shark attacks on healthy dolphins are rare.
Overall, while it's possible for sharks to kill dolphins, it's not a common occurrence. Dolphins are generally well-equipped to avoid becoming shark prey.