Which scallops are real scallops?

I'm curious, could you elaborate on the question "Which scallops are real scallops?" It seems like an intriguing inquiry, especially in the context of seafood authenticity. Are there imposters or imitation scallops in the market that consumers should be aware of? Are there certain characteristics or labels that can help identify genuine scallops? I'm eager to understand the nuances of identifying authentic scallops and how to differentiate them from potential substitutes. Could you provide some insights or guidance on this topic?