“Think of a squid,” I explain. “It uses its ink as a means to escape predators, right? Well, it turns out that ink isn’t only a defensive weapon like we thought. We’ve observed Japanese pygmy squid using ink to confuse and distract shrimp. A feeding strategy. Which makes sense. So whenever we find a useful tool with only one application, I assume that we haven’t been watching the animal that uses it closely enough.”
