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@3:30 David Attenborough says the Stingray is looking for a freshly molted crab to eat. Trying to read on how Stingrays hunt seem to suggest they don't really use their eyes but instead their ampullae of Lorenzini. How is this system sensitive enough to determine the structure of a crab shell?

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@3:30 David Attenborough says the Stingray is looking for a freshly molted crab to eat. Trying to read on how Stingrays hunt seem to suggest they don't really use their eyes but instead their ampullae of Lorenzini. How is this system sensitive enough to determine the structure of a crab shell?	1