Dec. 6, 2005 — Researchers from the World Wildlife Fund for Nature (WWF) may have made the extremely rare discovery of a new species of mammal in the dense forests of central Borneo, the organization said Tuesday.

The carnivorous mammal, slightly larger than a domestic cat with dark red fur and a long, bushy tail, was photographed twice by an automated camera at night in 2003 on the Indonesian side of the island, the WWF said.

Neither Bornean wildlife experts nor locals well acquainted with the area recognized the animal, the group said.

The animal, which has very small ears and large hind legs, was spotted in the Kayan Mentarang National Park in the mountainous jungles of Kalimantan, where vast tracts of rainforest still remain.

"Most were convinced it was a new species of carnivore," the WWF said, adding that researchers were hoping to set traps to catch a live specimen.

WWF ecologist Stephan Wulffraat told AFP that a live capture of the animal was required to confirm it was a new species.

The animal appeared to be a cross "between a cat and a fox" and may live in trees during the day, coming down at night, he said.

The group said it was extremely rare these days to discover a new mammal species of this size, particularly a carnivore.

If confirmed, it would be the first time in more than a century that a new carnivore has been discovered on the island, which lies between the Indian and Pacific Oceans.

The WWF warned that plans to create the world's largest palm oil plantation in Kalimantan, along the border with Malaysia's Sarawak and Sabah states, threaten further new discoveries.

The scheme, funded by the China Development Bank, is expected to cover an area of 1.8 million hectares (4.4 million acres).

Environmental watchdogs have criticized the plan, arguing that the jungle soil in the area is infertile and that the elevation is unsuitable for palm oil.

Indonesia is losing at least 2.8 million hectares of its forests every year to illegal logging alone.

The forest ministry's director for protected areas, Banjar Laban, told AFP that the potential discovery of a new mammal emphasized the urgent need to protect the biodiversity of Borneo's forests.

"If it turns out to be truly a new mammalian species, this should really become a national pride, something that the entire nation should be proud of and work to preserve," he said.

In the protected Kayan Mentarang forest, 361 new species — plants, insects, fish and other animals — were discovered between 1994 and 2004, he said.

Rapid deforestation has had devastating environmental consequences for both Indonesia and the Southeast Asian region, causing floods and landslides and shrouding nearby countries with haze from illegal fires set to clear land.