Walls built along the U.S.-Mexico border over the past several decades are ... impede the cross-border migration of dozens of animal species, cause catastrophic flooding, and separate families.

to study and understand the migration patterns of thick-billed parrots. Teams from San Diego Zoo Wildlife Alliance in the U.S. and conservation NGO Organización Vida Silvestre in Mexico have ...

Mexican authorities have begun constructing giant tent shelters in the city of Ciudad Juarez to prepare for a possible influx ...