That timing gave the mutation about 20 to 30 moth generations to spread through the population before people first reported sightings of the black moths in 1848. (sciencenewsforstudents.org)
trendsetters We've dug through years of reported sightings in an attempt to identify the original sheriff of Fashion Souls. (pcgamer.com)
Participants are asked to count birds on one or more days of the event and report their sightings online. (massaudubon.org)