An ant colony has memories that its individual members don’t have
Can memories exist by themselves or only in the network of the brain? "What is memory? For people, memory is the capacity to recall something that happened in the past. We also ask computers to reproduce past actions – the blending of the idea of the computer as brain and brain as computer has led us to take ‘memory’ to mean something like the information stored on a hard drive." But that may not be true as Deborah M Gordon writing in Aeon magazine examines.
From Aeon magazine