See-Through Goldfish UnveiledJapanese researchers have succeeded in producing goldfish whose beating hearts can be seen through translucent scales and skin, AFP reported.The development is just one part of efforts to reduce the need for school dissections, which have become increasingly controversial, particularly in schools.Yutaka Tamaru, an associate professor in the department of life science at Mie University, said the fish allow them to see a live heart and other organs because the scales and skin have no pigments."You don't have to cut it open.