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Sailfish Outpaces Bluefin Tuna

Sailfish Outpaces Bluefin Tuna

The article on Robotuna ["Robotuna Project to Model Real Fish," Oct. 17] needs one minor correction: The bluefin tuna is not the fastest fish in the sea. According to the latest National Marine Fisheries Service research, that title belongs to the sailfish, at over 60 mph (96 kph).

Marlin are a close second, with tuna topping out at an estimated 45 mph (72 kph). Marlin and sailfish need this speed since tuna form a large part of their diet.

I believe tuna are the most efficiently swimming fish, which is probably what you meant to say.

John H. Kim G