Palm trees growing in an unexpected place

The longest continental mountain range in the world may be one of the last places you would expect to find a palm tree. High above the foliage of the Andean mountains, Colombia's National Tree, the wax palm, has been intriguing scientists for decades.

Palm trees growing in an unexpected place
The longest continental mountain range in the world may be one of the last places you would expect to find a palm tree. High above the foliage of the Andean mountains, Colombia's National Tree, the wax palm, has been intriguing scientists for decades.