Adorable Vietnamese Mouse-Deer Rediscovered In The Wild After 30 Years!


The Vietnamese mouse-deer has not been seen in the wild since 1990 (Credit: SIE/GWC/Leibniz-IZW/NCNP)

Endemic to the forests of south and southeast Asia, the silver-backed chevrotain, or Vietnamese mouse-deer, is one of the world's most elusive animals. The rabbit-sized critter is only known to science through five specimens, four of which were recorded by researchers in 1910. The fifth was killed by a hunter and donated to scientists in 1990. Since then, there have been no recorded sightings of the animals, leading many to fear they had gone extinct. Now, thanks to the efforts and persistence of a team led by biologist Andrew Tilker, the species has not only been rediscovered but also photographed in the wild for the first time!

"It's a really cool species, and we'd long hoped to find the proof they were still around," says Tilker, a doctoral student with the Leibniz Institute for Zoo and Wildlife Research in Germany.

The animal, which looks like a hybrid between a mouse and a deer, is the smallest member of the hoofed ungulate family, which includes deer, giraffes, sheep, llamas, and many others. They live alone, or in pairs, and have a distinguishing silver sheen on their rumps, along with tusk-like incisors. Because chevrotains lack horns and antlers, and the teeth are unusually long in males, scientists believe the "fangs" are used to compete for territory and mates.

Andrew Tilker and An Nguyen are the first to photograph the mouse deer in the wild (Credit: SIE/GWC/Leibniz-IZW/NCNP)

Tilker and An Nguyen, a biologist and Ph.D. student with the Leibniz Institute for Zoo and Wildlife Research, began their search by talking to the local residents and rangers familiar with the dense forests. They then set up camera traps in three different Vietnamese provinces where there had been recent mouse-deer sightings. To their surprise and delight, over the course of two six-month study periods in 2017 and 2018, the motion-triggered cameras captured 200 images of the animals at 15 different locations.

"The species has been known to local people all along," says Tilker. "In this respect, the silver-backed chevrotain was a species that was 'lost to science,' but it was not lost to local people living in and around its habitat."

The researchers, who published their findings in the journal Nature Ecology & Evolution on November 11, 2019, believe that poaching and habitat loss are the biggest risks to the mouse-deer's existence. They are suggesting additional research to find more specimens. "It is important that scientists conduct follow-up surveys to search for additional populations, assess how common or rare the species is in places where it occurs, and to assess the major threats that it faces," says Tilker. "The involvement of local people will be critical in all of these efforts."

Climate change and loss of habitat is resulting in the loss of thousands of animals (Credit: IUCN/BBC)

The mouse-deer is the first creature found through the Search for Lost Species, a Global Wildlife Conservation initiative to find and protect around 1,200 breeds of animals and plants that have been lost to science. However, they are not unique in their status as a rediscovered species. Recently, scientists have also found specimens of other "vanished" animals, including Wallace’s giant bee, the Lord Howe Island stick insect, and the Varanus douarrha monitor lizard. Hopefully, they will be able to find all the others as well. As Tilker succinctly puts it, "We shouldn't give up on them just because we haven't seen them in a long time."


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  • genos
    genosSunday, December 8, 2019 at 11:03 am
    I need a mouse deer
    • cool_chick2000
      cool_chick2000Saturday, December 7, 2019 at 12:24 pm
      omg sooo cute i want a pet thats a mouse deer
      • cool_chick2000
        cool_chick2000Saturday, December 7, 2019 at 12:24 pm
        wait can i have a mouse deer pet?
      • invincikitty
        invincikittySaturday, December 7, 2019 at 10:23 am
        Sooo cute and cuddly and😍😍😍😍😍😍
        • bri6657
          bri6657Saturday, December 7, 2019 at 6:48 am
          so cute :))))))))))))))))))
          • mousedeer
            mousedeerThursday, December 5, 2019 at 6:35 pm
            Wow that is cool and cute!!!😍😍😻😻
            • rw5
              rw5Thursday, December 5, 2019 at 12:49 pm
              wow that was so cool
              • cegadazi-157106079505
                cegadazi-157106079505Thursday, December 5, 2019 at 12:37 pm
                • dylangames
                  dylangamesThursday, December 5, 2019 at 10:35 am
                  it looks kinda mutated... but still cute
                  • avaorion
                    avaorionThursday, December 5, 2019 at 8:47 am
                    so cute
                    • calebball123
                      calebball123Wednesday, December 4, 2019 at 8:10 am
                      but cool