| Apparently living at great depths with the hagfish, the prehistoric ratfish was recently discovered off Brazil by scientists. |
| Their diet includes squid, skates, ratfish, rockfish, and octopus, as well as pelagic fishes such as mackerel and sardines. |
| Hard to miss, especially by night divers, whose lights catch the gleam from its huge opalescent eyes, is the ratfish, which cruises by on wing-like pectoral fins. |
