This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
volunteers crayfish This nonnative crayfish thrives in the waters of the Santa Monica Mountains eating the eggs tadpoles and even adult frogs and newts. noticeable decrease in amphibians has been attributed to crayfish predation. Crayfish were most likely introduced to the Santa Monica Mountains because of their utilization as fishing