Attention Citizen Scientists: Here's How You Can Help Biologists Document California's Rich Biodiversity.

Researchers want your help to collect samples at four specific locations in Los Angeles as part of a much wider effort in the state to learn about changes in biodiversity.

The project, called CALeDNA, for California Environmental DNA, encourages everyone to be a citizen scientist. Volunteers get a kit to take small amounts of soil, sediment, and water.