Macropinna microstoma is probably the most famous fish from this family. It’s instantly recognizable with its transparent, ...

This unusual fish possesses tubular eyes that can rotate upwards, allowing it to peer through its transparent forehead. This unique feature helps the barreleye differentiate between sunlight and ...

One of the fish’s advantages is clear—literally. Because embryos are transparent and develop outside the mother’s body, scientists can manipulate genes to model human diseases and directly ...

There are virtually endless varieties of tetra species out there, but few are as immediately visually recognizable as ...