Chinook salmon are facing unprecedented challenges as their once-thriving populations struggle to survive. A new study published in the journal Ecosphere suggests that decades of human activities, including ocean harvest, artificial propagation and reservoir construction, have not only reduced the size of these fish, but also disrupted their ability to spawn successfully.

Spring is the perfect season to explore rangeland ecology in California. The grasslands are green, the skies are blue, and bright yellow monkey flowers dance in the breeze. Even metaphorically, spring is a good fit. Rangeland restoration brings new life.