Complicated life

I suppose that the complexity of intracellular mechanics should be apparent from the fact that it took three billion years for life to evolve multicellularity, but only half a billion years to get from the simplest animals to humans (and its arguable that animals haven't gotten significantly more complicated in 100 million years, or more). Still, images like this very simplified cell map never fail to impress me:


Of course, this image knocks that into a cocked hat:


There's a lot of shit going on inside cells! Genome Projector is a cool program that, among many other things, allows one to explore these pathways.