A camera trap has caught one of the world's most elusive cats on film for the first time, conservationists say.

Previously the cat was believed to be of the same species as the mainland clouded leopard.

"This footage is further evidence of the rich wildlife found in Berbak National Park, and is yet another reason why it [is] essential that a conservation plan is put in place for the long-term protection of these forests," ZSL's Sarah Christie said in a statement.

The new video shows one of the predator's unique adaptations to treetop living—a long tail that ensures balance on branches. (Learn more about National Geographic's Big Cats Initiative.)

The cat also relies on long claws and highly flexible ankles to scramble among the trees—and even shimmy down tree trunks like a squirrel, according to ZSL.