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It's interesting to think that all animals arose from one common ancestor, that we are all interconnected that way. Another thing that is interesting is that in the sense of struggling to survive, all organisms are equal. Humans are no more important than earthworms because both of us have fought to adapt, reproduce, and keep going and both of us have succeeded so far. In fact, if we want to consider who has been in fighting this battle the longest and give them more credit, we should take into account crocodiles, sharks, and especially cockroaches and other insects (they've been here for a pretty long time). It's amazing that they have survived and adapted through so much.

However what struck me was that everything that has happened in evolutionary history, has been the product of mere chance. The environment just happened to change in a way where humans were able to thrive and something else became extinct. Later on, it is very likely that the environment may change again where humans may die and another species can dominate. It's a little scary to think about that and I can understand where it may be uneasy for people who believe in concepts like destiny and life having a "plan". It doesn't bother me, but I don't know what to make out if it either.