I worked on Professor Susan Mazer’s NSF-funded research on the process of evolutionary adaptation of native plants to intensifying drought. The research started with collecting Nemophilla menziesii (Baby Blue Eyes) seeds from 4 wild populations in California. I helped to remove seeds from their fruits, count and sort the seeds by size, and weigh them to measure mean seed mass per population. After this was done for all four populations, I weighed the seeds, recorded their total mass, and then calculated mean individual seed mass (the average mass of an individual seed) for each population. I then conducted statistical analyses to detect and to characterize variation between and within the four populations. Results from this initial dataset show that there is variation in mean individual seed mass across the four study sites, presumably due to natural selection in response to temperature and precipitation. Populations occupying drier and warmer sites produced relatively large seeds, while the population occupying the wettest and coldest site produced the smallest seeds. Ongoing work under greenhouse conditions will determine whether the differences among populations observed in the field are maintained under relatively uniform experimental conditions, which would indicate that the differences observed among field populations are likely to have a genetic basis.