Deep inside the distant planets Uranus and Neptune, matter may exist in a bizarre form unlike anything we experience on Earth. A new study suggests that under the extreme heat and pressure found in...
Deep inside the distant planets Uranus and Neptune, matter may exist in a bizarre form unlike anything we experience on Earth. A new study suggests that under the extreme heat and pressure found in these planets, a substance made of carbon and hydrogen could enter a rare state known as “superionic.” The research, carried out […]
The post Scientists discover bizarre new state of matter deep inside Uranus and Neptune appeared first on Knowridge Science Report.
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scientists discover bizarre new state of matter deep inside uranus and neptune
Caridina zhaoiJiang, Zhou & Chen, 2026 DOI: doi.org/10.3897/zse.102.182296AbstractA new stygobiont species of freshwater shrimp, Caridina zhaoi&nb...
Caridina zhaoiJiang, Zhou & Chen, 2026 DOI: doi.org/10.3897/zse.102.182296AbstractA new stygobiont species of freshwater shrimp, Caridina zhaoi sp. nov., from a karst cave in Guiyang, Guizhou Province, southwestern China, is described and illustrated. The new species is morphologically distinct from its epigean congeners by a suite of stygobiotic characters, including the degeneration of eyes and absence of body pigmentation. It can be further distinguished from other known Chinese cavernicolous Caridina species by the combination of a relatively long rostrum with a specific rostral formula, the length of the stylocerite, the proportions of various joints of the first and second pereiopods, and the armature of the dactylus of the third and fifth pereiopods. Molecular analysis based on the mitochondrial COI gene reveals a high genetic divergence (14.70%–23.47%) between the new species and other atyids, supporting its validity as a distinct species. This discovery brings the total number of stygobiont Caridina species in China to 10, highlighting the rich but underestimated subterranean biodiversity of the Guizhou karst region.Key Words: COI, Crustacea, morphology, stygofauna, subterranean biodiversity, taxonomyA. The entrance of Xiangshui Cave; B. Live specimen of Caridina zhaoi sp. nov..Caridina zhaoi sp. nov. Xuankong Jiang, Jiajun Zhou and Huiming Chen. 2026. Caridina zhaoi sp. nov., A New stygobiont atyid Shrimp (Decapoda, Caridea, Atyidae) from a limestone cave in Guizhou Province, China. Zoosystematics and Evolution. 102(2): 601-609. DOI: doi.org/10.3897/zse.102.182296 [06 Apr 2026]
open access
asia
atyidae
crustacea
decapoda
east asia
freshwater
invertebrate
journal: zoosyste
Caridina zhaoiJiang, Zhou & Chen, 2026 DOI: doi.org/10.3897/zse.102.182296AbstractA new stygobiont species of freshwater shrimp, Caridina zhaoi&nb...
Caridina zhaoiJiang, Zhou & Chen, 2026 DOI: doi.org/10.3897/zse.102.182296AbstractA new stygobiont species of freshwater shrimp, Caridina zhaoi sp. nov., from a karst cave in Guiyang, Guizhou Province, southwestern China, is described and illustrated. The new species is morphologically distinct from its epigean congeners by a suite of stygobiotic characters, including the degeneration of eyes and absence of body pigmentation. It can be further distinguished from other known Chinese cavernicolous Caridina species by the combination of a relatively long rostrum with a specific rostral formula, the length of the stylocerite, the proportions of various joints of the first and second pereiopods, and the armature of the dactylus of the third and fifth pereiopods. Molecular analysis based on the mitochondrial COI gene reveals a high genetic divergence (14.70%–23.47%) between the new species and other atyids, supporting its validity as a distinct species. This discovery brings the total number of stygobiont Caridina species in China to 10, highlighting the rich but underestimated subterranean biodiversity of the Guizhou karst region.Key Words: COI, Crustacea, morphology, stygofauna, subterranean biodiversity, taxonomyA. The entrance of Xiangshui Cave; B. Live specimen of Caridina zhaoi sp. nov..Caridina zhaoi sp. nov. Xuankong Jiang, Jiajun Zhou and Huiming Chen. 2026. Caridina zhaoi sp. nov., A New stygobiont atyid Shrimp (Decapoda, Caridea, Atyidae) from a limestone cave in Guizhou Province, China. Zoosystematics and Evolution. 102(2): 601-609. DOI: doi.org/10.3897/zse.102.182296 [06 Apr 2026]
open access
asia
atyidae
crustacea
decapoda
east asia
freshwater
invertebrate
journal: zoosyste