Six things I was too naive to understand maybe I still am?

1.  Where do animals birth their babies? Because if they come out of their mommies' tummies like human beings do, surely doctors and nurses have to be involved, midwives at least, but there's no medical professionals in the jungle, for wild animals. So how do animals invite people to do their tasks. And what did they do before humans came around? Which reminds, what happens to animals in parts of the world where there's no humans, because who's going to do the surgery or 'natural birth' whatever it's called or however it works, to take the babies out?
   
   
2. Okay I understand viagara is used to make older men more excited, but why do they want to be excited, and what are they going to do with the excitement, and why are there so many jokes about viagra, is it funny to take it or what, and why is it always about creepy old men, and whenever I ask my dad why does he seem to suddenly remember something else or remember an appointment or fall asleep or whatever, never answering my question right away?
   
   
3. What about panther, what does it do, because I know condoms are something related to adults because everyone's embarrassed when the ads come on tv and change the channels but panther's not a condom right because they never seem to imply that, there's no cartoon character that looks like a balloon dancing around, there's only image of a cat or...animal....and a happy family, which must mean it's a little embarrassing thing but not too much, and also why does my dad not want to answer my questions?
   
   
4. Were people at my school having sex when they were standing by the school clinic fully clothed nearby a bunch of people but like hugging each other, girl in the front, and maybe they seemed to be grinding a little bit, the understanding of sex was it involved girl parts and guy parts and things to jump from the guy to the girl, but could those things go through several layer of clothes and possibly air, because why else is everyone so weirded out about people just hugging and being close, that happens and happened in other places I've been to all the times?
   
   
5. How could the guys have discovered at the insanely young age of 15 or sixteen possibly even younger, how to find people who will have sex with them for cheap, and willing to, with people of such young age, and and gone with the concept of 'splitting the costs', and really have agreed to copulate with multiple inexperienced confused not very eager yet somehow very eager teenagers?
   
   
6. How sad must the experiences of my friends have been, having intimate relations solidly into lat e/teens and early twenties with people who cared literally nothing about them and wanted to just get it over with as quick as possible because there was a lot else happening and it wasn't the right time for all of that etcetera?