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Sea Otters eat a lot of shellfish and breaking them open with their teeth can damage their teeth, which can have serious consequences.
By using tools, e.g. using a rock as an anvil to smash a clam on, these cute critters can eat more efficiently and spare their precious teeth. In a new study published in Science, scientists not only documented these behaviors, but also observed that female otters were more likely to use these more heady methods of accessing their meals, as well as more likely to teach their young the techniques.
I've always liked the "canopy feeding" strategy some herons use while fishing. They spread their wings over the water to create a shady spot. Fish favor shady spots, so it lures them closer. The heron gets rewarded with lunch.
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Otters Use Tools to Spare Their teeth
