life's four-billion-year improv show, where the only rule is dont die before you copy yourself.
means the study of how species change over generations through mutation, selection, and drift, explaining why anything alive looks the way it does.
from darwin and wallace independently pitched natural selection in 1858, but the field only became biology proper once mendel's genetics merged with it in the 1930s modern synthesis.
darwins finches — 14 galapagos species, beak shapes still shifting with rainfall today
peppered moths — industrial soot flipped england's moth color odds in decades
lenski's e coli — 75000+ generations tracked since 1988 in one running lab experiment
antibiotic resistance — bacteria out-evolving our drugs in real time, worldwide, right now