It's trying to figure out what it is. So, Barbara, can you take us back to the earliest evidence that we have for that kind of internal self-reflection that ultimately we think may have been the seeds for religiosity? The first thing I'd like to start and say is that, yes, it's certainly true that we attribute intentionality to a lot of animals, but the fact also is that they are intentional. So, we certainly don't have a corner on the market of intentionality or consciousness or sentience or any of these other things.