Organisms, especially bacteria tend to specialize, so evolution towards optimized plastic eating usually means evolution away from flesh eating. This is how th

Organisms, especially bacteria tend to specialize, so evolution towards optimized plastic eating usually means evolution away from flesh eating. This is how the first vaccine was invented (and why we call them vaccines). >the doctor took pus from the cowpox lesions on a milkmaid’s hands and introduced that fluid into a cut he made in the arm of an 8-year-old boy named James Phipps. Cowpox was sufficiently evolved away from humans and towards cows that it was easy for the human immune system to fight, and provides antibody protection against the much more dangerous smallpox.