After months of research, I have figured out that some animals use tools to their advantage. Sea otters are an example of that. A major part of the sea otter’s diet is the hard shelled abalone. As you can see from the name, they have a hard shell. The creature lives on the water's surface. The otters cannot crack this shell on their own, so they use tools. I have video evidence to support my conclusion. After watching their behavior for months on end, I have concluded that the otters find flat rocks and bang the abalone against the rock until it cracks open. To obtain the materials, the otter dives underwater and gets a rock and an abalone. Then, while surfacing, he rolls over on his back, places the rock on his chest, and hammers away until
