The ancient monkey puzzle tree has distinctive spiny leaves and intricate scaly branches. Its unusual features, scientists believe, evolved as a defense against towering, long-necked dinosaurs.

The earliest reference to the monkey in Chinese literature is a 2,200 ... Photograph by JED WEINGARTEN, Nat Geo Image Collection While the ancient texts do not show exactly how many of these ...

The six-part series is available on CNNgo. You can also access CNNgo via our CNN app. The ancient monkey puzzle tree has distinctive spiny leaves and intricate scaly branches. Its unusual features ...