I’ve seen enough Cat & Baby videos to believe that many cats understand babies as human kittens, and respond accordingly. Many, but not all.
Some fall in love with the baby, right off the bat. Others are very, very cautious. You’ll see one cat run all the way upstairs because the baby made a movement that unnerved him.
You haven’t ever done that, have you?
This is the most beautiful thing I’ve seen all day. The cats are fascinated by a tiny human, as they should be, tiny humans are fascinating. It’s amazing how gentle and cautious cats are in this situation.