If it's called an EARTHquake, how come only certain areas are affected by it? I mean I never experienced an earthquake but I know they happened dozens of times before How do scientists study mental things in animals? I heard that elephants think humans are cute and I'm wondering how that was found out Is it possible for a fruit/vegetable to go extinct? How do some animals just know about their characteristics? Like how do spiders know how to make the shape of a web? How was organ's purposes found out? Like how did people discover that kidneys cleans your blood? (I believe that's what kidneys do) If anyone could answer atleast just one -don't matter which one- of these, it would be greatly appreciated lol