* Orcas: Orcas are apex predators that are known to hunt and kill great white sharks.
* Elephant seals: Elephant seals are large, powerful marine mammals that can defend themselves against great white sharks. In some cases, elephant seals have even been known to kill great white sharks.
* Sea lions: Sea lions are another type of marine mammal that can defend themselves against great white sharks. Sea lions are very agile and can outswim great white sharks.
* Humpback whales: Humpback whales are large, powerful whales that can defend themselves against great white sharks. Humpback whales have been known to use their tails to slap great white sharks, stunning them or even killing them.