New research has discovered 16 new desert grasshopper species, revealing their Ice Age-driven isolation and diversification.

The thriving bird colonies likely grew over several decades because local shepherds had temporarily eliminated pumas ...

The Painted Desert, located within the Petrified Forest National Park in Arizona, is a tapestry of vibrant colors and ...

Some visitors to El Paso’s open space preserves in Northeast and West El Paso are creating their own trails and damaging the ...