>>14375416>We directly observe it through populations of creatures in labs. We directly observe it through cultivated and domesticated species. We directly observe it in nature.no you dont, you just observe natural selection and call it evolution without proving no change in phanoty, A1 class soience bullshiter.
Q for you, has lactose tolerance:
A.) Evolved by natural pressure
B.) Was selected for with natural selection form an existing genotype
