Is there any research that was done on animal long and short term memories? And short of empirical analysis, if there is none, is there much we could conclude, based purely on what we know about their brains? For example, from knowing which brain parts deal with explicit and which with implicit memories, perhaps we can know if certain species don't have explicit memory parts of the brain, they probably wouldn't have at the least explicit memory. And then further, whether the memory is short term versus just sensory memory? Any thoughts appreciated!