Adult walruses have few natural predators due to their size and tusks.
However, threats include:
* Polar bears: The main predator, especially of young walruses; adults are harder to prey on due to size and strength.
* Orcas (killer whales): Can hunt walruses hauled out on land or ice, targeting calves and weaker individuals.
* Other threats: Foxes or wolves may take calves, but these are not significant population threats.
Human activities like hunting and climate change are also major threats to walrus populations.