Warmer seas could be making fish forgetful. Now, a new study suggests for the first time that high water temperatures can cause memory loss in reef fish, and even render them unable to learn at all. Tropical fish live in complex environments and they’re constantly faced with decisions: What to eat, whom to fight, where to go. A lot has been done to understand how heat can kill fish, Dr. Luchiari said. But there’s relatively little research on how heat affects learning and memory in tropical fish that manage to survive high temperatures.

---

Persons: they’re, ”, Ana Carolina Luchiari, Luchiari Locations: Universidade Federal, Rio Grande do Norte, Natal, Brazil