Holding hands may also be from when babies latch on and don't let go because of the necessity of holding on to the parent. My friend's 2 year old grabbed my hand recently and it reminded me of their iron grip.
Kissing is so weird. You can make up a thousand just-so stories. You can imagine it meant totally different things through time and across cultures.
For me it just seems like yet another culturally-defined signal of intimacy. Like showing ankles or chests or saying this or that. Seems to me trying to make everything some hard wired evolutionary thing is a dead end.
This is innate “caring” behavior.
Similarly, mammary glands are for providing milk/nutrition.
These get associated with primal needs and therefore the amygdala, and so is associated with strong emotion.
> Rather, it is a non-erotic but intimate greeting used by people who, when they meet outside, often have little except their nose and eyes exposed.
https://en.wikipedia.org/wiki/Eskimo_kiss
/s
I think my ancestors were something like monkeys.
We are not the same.
Actually it was revealed to me in a dream.
For me it just seems like yet another culturally-defined signal of intimacy. Like showing ankles or chests or saying this or that. Seems to me trying to make everything some hard wired evolutionary thing is a dead end.
People having empathy for animals but not to humans who are different from them.
Humans have 46 chromosomes. Dogs have 78.