Photographer Melissa Groo shares her experiences with advocacy and ethics in creating and sharing images of wild animals.

Residents will vote on a ballot measure to reintroduce endangered gray wolves. There’s a strong ecological argument for why they’re needed, says biologist Joanna Lambert.

Cat Tale, a new book by journalist Craig Pittman, takes us on a wild ride into the science and politics of saving an iconic species. 

Roads can be a danger for wildlife, but new research shows they’re particularly bad news for a species already facing declines.

A database lets U.S. residents get quick information about water contaminants and health threats, but there are some bigger issues to consider, too.

Regulatory rollbacks are just one small part of the Trump administration’s efforts to limit the effectiveness of the Environmental Protection Agency, but there’s a whole lot more, says a career agency staffer.

The author and activist talks about climate hope, grief and her new book, On Fire: The (Burning) Case for a Green New Deal . 

Author and activist Maude Barlow talks about the growing global movement to protect public control of water resources.

The Post Carbon Institute’s Jason Bradford writes that climate change and the end of cheap fossil fuels will increase the need for local food systems and revitalized rural economies.

For 12 years, Janet Kessler has chronicled the behavior and family life of San Francisco’s growing population of coyotes as the city itself undergoes big changes.