* Sharks: While some large sharks, like Great Whites, are capable of taking down elephant seals, it's not a common part of their diet. Elephant seals are large, powerful, and well-defended animals. A shark would likely only target a young, injured, or already dead seal.
* Whales: Whales are generally not known to eat elephant seals. Most whale species are either filter feeders (eating krill and plankton) or eat smaller fish and squid. Some larger whales, like orcas, might occasionally prey on a young or weak elephant seal, but it's not a regular part of their diet.
Important Note: The relationship between these animals is complex, and there's always a possibility of a rare encounter. However, it's generally not considered a typical food chain interaction.