How did single celled organisms evolve into multicellular organisms?

Question

I feel like this part of evolution is kind of skipped over by historians. The more I think about it the more it hurts my brain

In: Biology

Answer 1

One of the main things people struggle to get their head around is time. Life on earth was (and mostly still is) basically slime for 95% of the time and multicellular beings are a very recent addition. When you have millions/billions of years that’s a lot of cell division and variation.