Well first, figured it is enjoyable to discuss genuinely obscure realities, that implies no one knows them yet. So on obscure actualities, well we may well have additional earthly life on Mars, in the seas of Europa and Enceladus, even on Ceres, and the upper climate of Venus and different spots. Indeed, even on comets, conceivably. Regardless of whether we do or not is totally obscure. In any case, probably that is something that is either valid or false yet no one knows which it is yet.
In spite of the fact that it might be exceptionally implausible - it's idea that the Europan sea has enough oxygen to supply a very sizeable biological system - not as much as Earth using any and all means, however as much as, state, the aqueous vents on Earth (oxygen through separation of water by Jupiter's radiation). Provided that this is true, it may possibly have higher creatures like octopuses and dolphins. Well on the off chance that it can have those - why not smart life moreover? It would be non innovative on the off chance that it exists, in all likelihood, without flame. Assume the Europa sea had an a large number of years old extremely enlightened yet non innovative human advancement - well we wouldn't realize anything existed at all outside the Europan sea so wouldn't think about us. What's more, we wouldn't think about them yet either.
So it's certainly feasible that one of the obscure actualities about our nearby planetary group is that we are by all account not the only keen animals with a progress local to it. May be different ways it could happen additionally (Mars not likely on our best information, since its most livable locales are like our harshest driest and coldest deserts - they tend not even to have that much by method for multi-cell life, don't bother insightful life - however might be different spots - even Titan - know next to no about it, thoughts for natural chemistry theoretical must have returned to front to Earth existence with what our cells use for cells as the inside and what they client for the inside as the cell dividers, kind of, to live in seas of ethane and methane).