Ever wondered about the effective population size of your favourite species? NeOGen allows you to make a population of many thousands of individuals matching a species with overlapping generations and the life-history characters that you enter. Once you set this up, you can try different sampling schemes (varying numbers of individuals and genetic loci) to see how well the estimate matches the ‘true’ effective size of the population. You can also generate populations of different sizes to match the effective size that you have measured in the wild. Read more and download it here. Read the paper here.