Fresh video images of the world's most endangered mammal - the elusive Javan rhino - were released today.

Just 60 of the 5000 lbs animals are thought to remain alive in the Indonesian jungles.

But the Javan rhinos, which grow more than three metres long, are extremely shy and efforts to capture pictures of them with stills cameras were often frustrated because the animals flee at the sound of the shutter.

Now the environmental group WWF has caught images of the rhino on video cameras in the rugged Ujung Kulon National Park on the southern tip of Java, Indonesia.

The grainy clips show a mother and calf, accompanied by a large male, wallowing in muddy holes. Other footage shot at night reveals the female rhino chasing a pig away.