Where to Find Star Anise. Star anise is common in Chinese markets for pennies an ounce. Most spice merchants also carry it, such as The Spice House and Penzeys, both for $4 an ounce. This is definitely a spice to purchase wholeâit'll last for years in star form, and you can break off petals as needed.
Darwin recognized the process of evolution (natural selection). Correct. Darwin's greatest contribution to science is that he recognized that the process of evolution (natural selection) could explain the pattern of evolution (descent with modification). Evolution by natural selection is considered to be the organizing principle of biology-----
Although it was known that species evolved, there was no â¦real universally accepted reason why they did so.  Charles Darwin's contribution was combining competition for resources, avoidance of predators, and the ability to attract a mate for the purpose of reproduction into a single theory called Natural Selection.