IIRC, the cat sucks the breath out of people in ancient lore.
In reality, dogs and cats have highly developed senses. The cat probably smells something that is a “death rattle” precursor (now THAT would be an interesting pursuit) and is empathetic so expresses itself to the victim.
Exactly.
Vultures do the same thing.
If that cat jumped on my bed, I'd throw it out the window.
I don't need no cat around licking its chops waiting for me to kick.
Humans can detect one-part-per-million in odor. Even average dogs can detect 100x greater than that. I recall that some dogs can detect cancer (and other diseases) in humans.
"Cadaver-dogs", who detect drowning victims under water, are just incredible!