The pudu (Pudu pudu), considered to be the world's smallest deer, is a native of South America. There are two groups of pudu, the northern, which stands about 18 inches (46 cm) at the shoulder, and the southern, which averages between 14 to 16 inches (36 to 41 cm). Both groups are endangered.

The pudu has several interesting characteristics that distinguish it from other deer. It is able to climb trees, and often climbs bamboo stalks to escape predators and eat the leaves. When threatened, it barks in alarm.