How do we know that dolphins or flowers don't question life? What behaviour should we looking for (since they can't talk)?
I get Bible vibes from your post, where humans are the only animal with free will and possibility to leave God's straight plan?
The crown of the creation, given this useless freedom that's actually slavery, and then dispersed as sheep by Lucifer, with only one weapon: lies.
Eventually saved by the good sheperd, who said that the truth will set you free (really free) and went off to find the last one of the hundered sheep.
Well, good luck with that