In this context they mean the same. "Reach" actually means "to arrive" but it suggests that it was with some degree of difficulty. For example: After a month of travelling I finally arrived in Mongolia. After a month of travelling I finally reached Mongolia. So they mean the same but the first sentence is just stating a fact they they arrived. But when you use reach in the second sentence it is a bit charged emotionally as well, tye journey was long and difficult and you emphasize that you finally managed to get where you wanted. Hope that helps ;)

I would say Did these bones belong to ancestors of humans?

Depends what you want to achieve. Someone might say they love Japanese culture because they watch Japanese shows and eat Japanese food but never want to actually travel to the actual country. And it's fine. And someone else will say they love Japanese culture because they do all of the above PLUS they would like to visit the country. And that is also fine. You can enjoy another country's culture without knowing the language or without even having the willingness to learn it. But of course! Learning the language gives you the extra info on the culture. Broadens your knowledge about it and makes you see more differences. My favourite example is that the English idiom goes - "from a frying pan into the fire", but the Polish equivalent goes - "from the the rain to under the gutter" (sorry, literal, translation). So... meaning the same, but different metaphors to achieve it. Analysing this kind of differences gives you a bigger insight into another culture ;)

I had to read Poe as part of my Literature course at uni and I must say I loved it! Very gloomy but intricate descriptions. Some people say it is depressing but I believe that reading "depressing" literature or listening to "depressing" music actually gives you a feeling of hope.