Pregnant creature found in ‘rotting leaves' on Vietnam peak. It's a new species
As night stretched across a mountain in southern Vietnam, a pregnant creature waited under some 'rotting leaves.' But its hiding place wasn't hidden enough.
Visiting scientists found the 'orange-tailed' animal — and discovered a new species.
A team of researchers trekked up Tà Cú Mountain several times between 2018 and 2020 to search for wildlife. The 'isolated mountain' was already known to have three native species of lizard, so the team suspected it might have even more biodiversity, according to a study published May 14 in the peer-reviewed European Journal of Taxonomy.
During their night hikes, researchers spotted some orange tails peeking out from the bushes and found several unfamiliar-looking lizards. They took a closer look at the lizards, tested their DNA and realized they'd discovered a new species: Scincella auranticaudata, or the orange-tailed ground skink.
Orange-tailed ground skinks are considered 'medium'-sized, reaching about 6 inches in length, the study said. They have 'robust' bodies with 'short' snouts and yellow-tinged eyes.
Photos show the coloring of the new species. Its upper body has a mixture of brown and bright orange becoming more brown toward the middle of its body then fading to pale orange on its tail. Some 'large black spots' also run down its back. Seen from below, it has a 'pink' and 'yellowish' belly.
Researchers said they named the new species after the Latin words for 'orange-colored' and 'tail' because of its vibrant tail.
Orange-tailed ground skinks were found at night 'on the ground among rotting leaves in evergreen forest on a mountain slope' at elevations of about 1,700 feet, researchers said. Two female skinks were found pregnant.
Much about the lifestyle of orange-tailed ground skinks remains unknown.
So far, the new species has only been found on Tà Cú Mountain, also spelled Ta Kou Mountain, in Bình Thuận Province of southern Vietnam and a roughly 105-mile drive east from Ho Chi Minh City.
A 2021 YouTube video shared by 24 Go Somewhere shows a hike up Tà Cú Mountain.
The new species was identified by its size, scale pattern, finger and toe shape, genitalia, coloring and other subtle physical features, the study said. DNA analysis found the new species had at least 9% genetic divergence from other related species.
The research team included Sang Ngoc Nguyen, Luan Thanh Nguyen, Manh Van Le, Vu Dang Hoang Nguyen, Khanh Duy Phan, Thi-Dieu-Hien Vo, Robert Murphy and Jing Che.
The team also discovered a second new species: the Hon Ba ground skink.
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