Landlocked Laos, which borders China and Vietnam, is a key transit hub in the global trade in illegal wildlife, but experts say the discovery of red pandas there is virtually unheard of.
Six of the cat-sized bears were found on January 12 inside northern Laos during a random stop of a van travelling from China, one of their few remaining habitats.
Three died later after the rough journey but the remaining three were sent to a sanctuary run by the Free the Bears NGO in the northern tourist town of Luang Prabang, where they are recovering well.
The group shared recent footage of the ring-tailed red pandas munching on leaves and eating fresh fruit while occasionally staring up in apparent puzzlement at the camera.
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With habitats under threat in the Eastern Himalayas and China, red pandas are considered endangered and highly vulnerable to infectious diseases.
But their copper fur, cute appearance and small size also make them easy candidates for the exotic pet trade.
"This is a very unusual confiscation as red pandas had never before been seen in Laos," Mabin said. "The most likely explanation is that the animals were destined for either a private zoo or the exotic pet trade."
The animals are also targeted for their fur.
Ang Phuri Sherpa, Nepal country director for the Red Panda Network, said the mammals are difficult to find outside of their habitats in the dense bamboo forests across countries including Nepal, Bhutan, India, China and Myanmar.
Discussions are ongoing over where the creatures will live once fully recovered.
"Whether that is at the sanctuary in Laos or in the wild in China is yet to be determined," Free the Bears Mabin added.