Deep in Indonesia’s Ujung Kulon National Park, motion-activated cameras have recorded two critically endangered Javan rhinoceroses with their calves. The footage is a huge boost to efforts to save this almost extinct species that is threatened by poaching, disease, and the possibility of a tsunami or volcanic eruption. Though the footage is “great news,” only 40 individuals remain—with none in captivity, conservationists say. This makes the Javan rhino possibly the rarest mammal on the planet.

Learn more about the species and donate directly to a WWF fund that will establish the conservation area and monitor the several individual rhinos that will populate it later this year. More info here.

Also endangered is the Japanese Giant Salamander

Endangered Javan Rhino caught on tape

Raw footage of Javan Rhino

More about Javan Rhino
The Javan rhino is a dusky grey colour and has a single horn, about 25 cm; the skin has a number of loose folds giving the appearance of armour plating. This species is very similar in appearance to the closely-related Indian rhinoceros, but is slightly smaller, with a much smaller head and the skin folds less apparent than in the Indian rhino. Recent evidence suggests that the horn may be absent or very small in females. The upper lip is pointed and can be used to grasp food and bring it to the mouth.