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

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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."

Resources: Natgeo.com, CNN.com, NewsAtlas.com

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315 Comments
  • belle10
    belle10Monday, April 6, 2020 at 7:02 pm
    we live in the country so we see deer all the time.
    • pinkroseflower7
      pinkroseflower7Wednesday, April 1, 2020 at 1:59 pm
      I saw a deer before
      • amberlight
        amberlightThursday, March 19, 2020 at 9:55 pm
        :> i dont really like the look but i love animals so i wish i had one too,or at least seen one in real life
        • amberlight
          amberlightThursday, March 19, 2020 at 9:51 pm
          looks like a kangaroo on 4 legs with hooves
          • tarantula444
            tarantula444Wednesday, March 18, 2020 at 3:45 pm
            that's great for the species and the economy . But lets hope they dont dispear again.(i know its illegal but i want one too :) .
            • super_pup
              super_pupTuesday, March 10, 2020 at 2:41 pm
              WOW that's so cool❤😎👍
              • lightningbolt23
                lightningbolt23Monday, March 9, 2020 at 12:33 pm
                I want one for Christmas!
                • wither
                  witherFriday, March 27, 2020 at 2:54 pm
                  Ya, that is an illegal >_<
                  • tarantula444
                    tarantula444Wednesday, March 18, 2020 at 3:46 pm
                    that's illegal :|
                  • iguanahaley
                    iguanahaleyThursday, March 5, 2020 at 10:33 am
                    awwww that hunter was mean to shoot one
                    • danbird1
                      danbird1Tuesday, February 25, 2020 at 4:30 pm
                      So cute!!!!!!!! deers rock
                      • danbird1
                        danbird1Tuesday, February 25, 2020 at 4:30 pm
                        awsome
                      • alyssathecool
                        alyssathecoolFriday, February 21, 2020 at 4:15 pm
                        They are adorbal I love them I wish I had one as a pet
                        • danbird1
                          danbird1Tuesday, February 25, 2020 at 4:31 pm
                          nice