Hitan" in Arabic, holds more than 400 primitive whale skeletons that offer a snapshot of the evolution of these creatures ...

Dust from the Sahara Desert, once a massive lake, travels across the Atlantic Ocean. This dust, rich in potassium and iron ...

Sand scorpions, nocturnal hunters who spend their days in burrows, also leave distinct tracks.

The saguaro cactus is the iconic plant of the Arizona borderlands, and in June and early July, its fruit ripens.