I suspect the universe is teeming with life however the chances of it being intelligent enough to make contact is slim, just think, if humans didnt evolve none of the thousands of species on earth would even comprehend space.
Which is why imo that makes it more rather than less likely.
We are relating that to a scale we can comprehend. Bring one - of the thousands of species, on one single planet, over a period of a couple billion years.
We can't even quantify the time or numbers involved beyond that, to comprehend the chances of it happening elsewhere.