O Line!

This past Friday, after living in the DC area and being a regular visitor to the National Zoo for nearly 10 years, I finally saw the orangutans on the Orangutan Transport System (aka, the "O Line"). The O Line is a system of tall metal towers connected by cables that allows the zoo's orangutans to travel back and forth between their primary enclosure and the orangutan research facility, or "Think Tank." Once the door to their primary enclosure opened, two orangutans walked right out and immediately started climbing up the tower and began making their way across the cables. We were at the right place at the right time -- finally!