In the novel "A Hitchhiker's Guide to the Galaxy," mice were considered the most intelligent species on the planet. In reality mice are not smarter than humans and several other species, but they are clever. They are highly social, playful, curious, affectionate, capable of learning and can be taught tricks. read more
The mouse will think that if the first mouse was happy to spend time in the trap, there can’t be a problem, and it will happily enter the trap, only to be caught. Another possible reason why some people think that mice can grow smart about avoiding traps is simply that they don’t position the traps where there is the most mouse activity. read more