The Gila River

Covering more than 58,000 square miles, the watershed of the Gila River includes most of Arizona south of the Mogollon Rim.  The river itsel...

06:11

Africa's Aquatic Dinosaur

Last evening, NOVA , on PBS, focused on the discovery and evaluation of Spinosaurus fossils, the largest carnivorous dinosaur yet unearthed ...

07:58

The Miner's Cat

Slender omnivores of the Desert Southwest, Mexico and Central America, ringtails are members of the raccoon family.  Though fairly common on...

09:51