How do sea otters use tools?

Sea otters are one of the few animal species known to use tools in the wild. They use rocks and other hard objects to crack open shellfish and other prey, such as crabs and clams. Sea otters have a specialized pouch under their forearms where they store their tools, allowing them to access them easily while floating on their backs. By using tools, sea otters are able to access food sources that would otherwise be difficult to open, showcasing their remarkable problem-solving abilities and advanced behavior.