Saola is a critically endangered bovid that was discovered in 1992 in the Annamite Mountains of Vietnam and Laos. It is one of the rarest and most threatened mammals in the world, with no confirmed sightings in the wild since 2013.
Tonkin snub-nosed monkey is a critically endangered primate that is endemic to northern Vietnam. It is the most distinctive and rarest of the five snub-nosed monkey species, with fewer than 250 individuals remaining in fragmented habitats.
Giant ibis is a critically endangered bird that is the national bird of Cambodia and also occurs in southern Vietnam. It is the largest and most endangered of the ibis species, with an estimated population of less than 200 mature individuals.
Hawksbill sea turtle is a critically endangered reptile that is found in the tropical and subtropical waters of the South China Sea, including Vietnam. It is one of the most exploited and threatened sea turtles, due to its highly valued shell, meat, and eggs.
Red-shanked douc is an endangered monkey that is endemic to the Indochina Peninsula, including central and northern Vietnam. It is one of the most colorful and charismatic primates, with a striking coat of reddish-brown, white, black, and gray fur.