Daniel Judkins explores the riparian habitat near the Santa Cruz River in Tubac, Arizona. The binational river runs through both Arizona and Sonora, Mexico.

Eddie and Miley observe the 2024 solar eclipse in Nogales, Arizona.

Students in North Philadelphia practice during an after school Zumba class held by Philly Girls in Motion. (For WHYY)

Carlos Parra grew up in the border town of Nogales, Arizona, often crossing into Nogales, Sonora to visit family. Later, he devoted years to studying the true cause of the Battle of Ambos Nogales: a 1918 battle that led to the first permanent border wall between the United States and Mexico. (Independent)

Santa Cruz County Emergency Management Director Sobeira Castro pauses after assisting asylum-seekers onto a bus destined for Tucson, Ariz.

A girl practices jumping rope during an activities fair for kids in Nogales, Mexico, just south of the U.S.-Mexico border. (For the Border Youth Tennis Exchange)

Jazz saxophonist Charles McPherson pays tribute to musician Charles Mingus during a performance in Nogales, Arizona.

U.S. Sen. John Fetterman displays a row of tattoos commemorating homicide victims in Braddock, Pennsylvania during a rally for gun control in 2018. (For WHYY)

Willow Zef points out a wild strawberry growing at the Cesar Andréu Iglesias Community Garden in North Philadelphia. Due to a boom in real estate development, a parcel of the garden was recently purchased by a developer. (For WHYY)

Santos, a rancher in rural Sonora, Mexico, stands for a portrait. (Independent)

Joaquín Murrieta, an ecologist, demonstrates a water conservation technique at the Watershed Management Group’s headquarters in Tucson, Arizona. The headquarters are 100 percent rainwater-dependent. (Independent)

Students participate in a team-building activity through the Border Youth Tennis Exchange, a youth and education program that operates in Nogales, Arizona and Nogales, Sonora. (For BYTE)

Alma Cota de Yanez, a non-profit leader and community organizer, stands for a portrait in Nogales, Sonora. Cota de Yanez works with large-scale donors and community organizations as a director for Fundación Del Empresariado A.C., or FESAC. (For The Border Community Alliance)

Peg Bowden, a nurse, author and activist, stands for a portrait in Tubac, Arizona. In 2014, a young man from Guatemala crossed the border and, walking through the Arizona desert, showed up at Bowden’s door seeking aid.

Rancher and lawyer Tony Sedgwick surveys the landscape at the San Rafael Ranch in Patagonia, Arizona. (Independent)

The Sonoran Desert in Southern Arizona.