SCIENCE NEWS: Human actions impact wild salmon’s ability to evolve; A worm, a parasite, and a salmon; Wildfire ash could trap mercury; Tracking aquifer water with seismic noise; and more …

In science news this week: Human actions impact wild salmon’s ability to evolve:  “Once spring-run chinook salmon disappear, they are not likely to re-emerge, indicates genetic analysis of the revered wild fish in a study led by the University of California, Davis. Prompt conservation action could preserve spring-run chinook, as well as their evolutionary potential.  The study, published online today … Continue reading SCIENCE NEWS: Human actions impact wild salmon’s ability to evolve; A worm, a parasite, and a salmon; Wildfire ash could trap mercury; Tracking aquifer water with seismic noise; and more …