Oh Lordy @ Chris Pratt
I wonder why we have eyebrows...
I wonder if dogs know they're just covered in eyebrows..
If evolution is the survival of the fittest, what is the purpose of disease? Like the bugs that cause gastro and things like that? How did they survive? What would happen on an evolutionary level if we eradicated these bugs? Is it like when other animals become extinct and it affects the food chain?
Ok. I just read about genetic drift which I've never even heard of! There's a wiki article though so I clearly an expert now!
So...do these germs have a 'purpose' or are they just along for the ride?
Well germs were pretty much the first living organism that some then evolved into plants, animals, fungi etc. So you could say we are the ones along for the ride. Haha. Higher organisms don't necessarily replace the older forms of life but either live together or compete. We rely on bacteria to protect us and provide nutrients (ie. On skin and in digestive system) as well as bugs (in this sense, bacteria & fungi) in the soil to compost dead plant matter etc so new plants can grow. So germs are actually essential to our existence.
Something like gastro essentially tries to steal our nutrients by replicating in our gut then spreading. So when we get better its not that we have killed all the germs as many escape (ie. Through vomit etc). Viruses do the same. They hijack our cells so they can replicate and spread. Our immune system stops them but not until after you have coughed them everywhere to infect someone else.
Wow. Never knew any of this. I am renowned among for friends for my random onslaughts of stupid questions so thank you for not rolling your eyes at me :-)
Now I'm wondering if other animals suffer from bad eyesight? Could it ever be the case that clumsy dogs just need glasses?
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