Post 12: A beautiful protein structure ❤️

Proteins can form some really cool structures, like little machines shaped by evolution. For example, caveolin, a protein involved in substance trafficking in the cell.

And while natural selection is the basis of what shapes them, there are many more evolutionary forces that mold them.

Refs:

1. Twitter: @PiperProteins
2. The Role of Evolution in Shaping Ecological Networks