Evolution is absolutely crucial as the underlying scientific theory that unifies virtually all biological/life sciences. If we want budding biologists, medical researchers, and chemists we need to teach a foundational understanding in evolution. Not to mention fostering a broad understanding of scientific inquiry and the world we live in.
The initial catalyst was the creation of the rift valley seperating our shared ancestor into two groups each living in their own ecological islands (one in the forest, the other savanna). Technically, chimps and bonobos are more evolved than we are as they have experienced a greater number of genetic adaptions since separating from our shared ancestor than we have.
Our greater intelligence arises from adapting to the harsh conditions of the savanna as well where collaboration in hunting and gathering was more beneficial, game was far more dispersed, and more knowledge had to be passed down between generations as to where game could be found, tool use, location of water during the dry season and so on.
"You're the only person that decides how far you'll go and what you're capable of." - Ben Saunders (Explorer and Endurance Athlete)
For a very simplistic example: Lets say we have two exactly the same genes. You put one in the Sahara Desert and one in Brazil's tropical jungle. One of those gene's will develop, over time, a resistance to extreme heat. The other gene is going to develop, again over time, a resistance to wet weather (such as an otters fur). The gene in the desert will never develop the type of fur required to deal with wet weather. The gene in the tropical jungle will never develop the resistance to the heat in the Saraha Desert.
In other words "random" is not really random at all. We humans are simply just not advanced enough to know or figure out why <insert whatever "randomness" happens here> happens. So we use the word random due to a lack of knowledge and nothing more. Its a form of ignorance.
I have an answer for everything...you may not like the answer or it may not satisfy your curiosity..but it will still be an answer. ~ Kal'Stang
My mind and my heart are saying I'm in my twenties. My body is pointing at my mind and heart and laughing its ass off. ~ Kal'Stang