Crows do this to some extent. They gather collective knowledge and pass it on to their offspring. If you act maliciously towards a crow, it will teach its friends that you are dangerous, and they will all warn each other if you approach. This will keep happening even after the original crows are dead, because they will teach their children that you are an asshole, too, even though those children may never have seen you do anything wrong.
Yes, and that's a step up from a blank slate for every generation. But humans take it much further by creating powerful abstractions, and transmitting specifics and abstractions in a form that survives the death of the original creator.
I can read Newton's Principia online, or take an undergrad physics course. His insights are still shaping our world view even though he's been dead for centuries now.
Only humans have worked out how to abstract the intelligence from individuals into lasting communications that don't require face-to-face transmission.
Unfortunately we've only done this about selective topics. Personal relationships and political and economic systems still work relatively badly because they don't have anything equivalent to the cumulative summary, insight, and abstraction processes at the core of science and technology.
