National Geographic: Explorer

Explorer goes around the world to look at the biology and behavior of big cats including lions, tigers, leopards, and cheetahs.

Methamphetamine is one of the hardest drugs to quit. Its abuse is ravaging rural communities and cities alike. NGC correspondent Lisa Ling goes inside this global epidemic to find out what makes meth so addictive and destructive.

Up to 30 feet long, today's giant snakes are as big as they've ever been and their appetites may have never been bigger. Over 100 teeth, 300 vertebrae, 600 ribs, and 10,000 muscles work together to form nature's most elegant predator. Now, National Geographic debunks the myths and reveals the startling truths of the Super Snake.