“Roadkill occurs when vehicles collide with or run over wildlife, such as birds, mammals, reptiles, and amphibians. According to the Humane Society of the United States, over a million animals are killed every day on our roads and highways. We have created this site to provide a way for people like you to report roadkill so that we can understand and try to influence the factors that contribute to roadkill.”

• Why scientists have mapped 29,777 instances of roadkill across California: “Scientists in California have spent the past six years carefully tracking and mapping 29,777 instances of roadkill across the state. The reason? The animals we kill on the roads, it turns out, can tell biologists a lot about the animals living in the wild as a whole.”