The Surprising Complexity of Animal Memories
Chimpanzees, birds, and even rats have shown signs of reviewing their own past to prepare for the future.
![A bird holding a peanut](https://cdn.theatlantic.com/thumbor/ItEL_wLWM5xOU-gHreviqkGme8Q=/163x0:2431x2268/80x80/media/img/mt/2019/05/GettyImages_185184241/original.jpg)
Chimpanzees, birds, and even rats have shown signs of reviewing their own past to prepare for the future.