"For a number of years, San Francisco has been in the top five, but this year the city took the lead—and it’s a big deal."

The center has been closed since March as an investigation tries to determine how 13 animals came to be neglected.

Members of the community successfully secured funds for a major makeover.

The plaza honoring a man whose policies displaced thousands of minority and low-income residents "needs a new name," said two supervisors.

Over the course of 46 years, Elly helped contribute to the population of critically endangered black rhinos in the world.

Si'ahl, Imnaha and Talulah are just beginning to eat fish and meat.

Thanks to pedestrian and bicycle improvement projects, the little park will expand its footprint.

These highly adaptable birds often eat near Lake Merritt, but they live Downtown.

Since the fire, city officials erected a locked gate around the site, restricting access for gardeners and volunteers.

A group of Outer Richmond volunteers is taking strides to make their massive neighborhood cigarette butt cleanup permanent.

A dead-end street has been transformed into a one-acre public park with a dog run.

The city's greenhouse gas emissions have fallen by 28 percent since 1990, even as its population went up 19 percent.

Start gathering your gear: Alamo Square is finally reopening.