Japanese Researchers Develop See-through Goldfish

The news of these see-through goldfish broke a couple of weeks ago, but they still fascinate me since I used to keep aquarium fish. The benefit of these goldfish is that you can watch how their bodies develop as they grow.

Japanese researchers succeeded in producing goldfish whose beating hearts can be seen through translucent scales and skin. The transparent creatures are part of efforts to reduce the need for dissections, which have become increasingly controversial, particularly in schools.