Bison Return to Mexican Desert After 200 Years

Bison have returned to Mexico's Chihuahua desert region after a 200-year absence. Last year, the Fundación Pro Cuatrociénegas brought 48 animals to El Santuario Wildlife Reserve, part of the protected natural area Cuatrociénegas in Coahuila. The animals are considered a key species for dry grasslands: their hooves break open the ground, their fur spreads seeds, and their dung fertilizes the...