Cave angel fish were first seen walking on rocks in a cave in Thailand four years ago and now, scientists have identified about a dozen species of fish with similar capacity.
The team analyzed the pelvic structures of about 30 hillstream lach species and found 11 matches of the rare, blind cryptotora tha tha mycola identified in 2016.
Using a CT scan, the results described three classes of pelvic formation for the first time and allowed the research to determine the structure providing the ability to walk.
These species have stronger sacral rib connections between the cartilage region that support the fins and spinal column, enabling them to move out of the water from the tetrapod like a side-like sequence.
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The team analyzed the pelvic structures of about 30 hillstream lachch species and found 11 matches with the rare, blind Cryptotora themicola identified in 2016. Using a CT scan, the results first described three classes of pelvic formation and allowed research to determine the formation. Which provides the ability to walk
The discovery was made by researchers at the Florida Museum of Natural History, the New Jersey Institute of Technology, the State University of Louisiana and Mejo University in Thailand.
“Fish generally have no connection between the spine and the pelvic fin,” said Zachary Randall, a biologist at the Florida Museum’s imaging lab and co-author of the study.
‘But before, the idea was that the cave angel fish is quite unique. The really nice thing about this paper is that it shows in great detail that a strong pelvic girdle is more common than one would think in a lowland family of hills. ‘
Cryptotora themicola, also known as Cave Angel Fish, is a blind cavefish that discovered looking in caves in northern Thailand in 2016.
Cryptotora themicola, also known as Cave Angel Fish, is a blind cavefish that discovered looking in caves in northern Thailand in 2016.
Fish were spotted on the rocks in the spring, with the same activity as the salamander.
Fish were spotted on the rocks in the spring, with the same activity as the salamander.
While Cryptotora themicola is not the only fish known to leave the water, researchers say it is unique in its skeletal structure, giving it a salamander-like guide.
Other types of climbing fish, including the Hawaiian Falls climbing gobies, use indulgence or suction to get out of the water.
Cryptotora themicola, however, runs along a gait known as the ‘diagonal-couple side sequence,’ which is attributed solely to tetrapods – all animals that have descended from shared four-legged ancestors.
The team noted that more than 100 mountain species inhabit Southeast Asia and that the cave angel fish is the only one observed with walking ability.
There are long, narrow ribbed species that attach to the pelvic plate. The second group was found with pelvic plate-like ribs, slightly curved ribs, and the last had a strong crest rib connecting to the pelvic plate. Of the 29 species studied, 11 species fell into the third category
And this salamander-like guitar has been found in 11 more species in the hillstream loch family.
A new study has found three variations of the pelvic structure in this large family.
There are long, narrow ribbed species that attach to the pelvic plate.
The second group was found with pelvic plate-like ribs, slightly curved ribs, and the last had a strong crest rib connecting to the pelvic plate.
Of the 29 species studied, 11 fell into the third category which is similar to cave angel fish and provides the ability for creatures to walk.
Lee Crawford, corresponding author of the study and Ph.D. A candidate from NJIT’s Department of Biological Sciences said: ‘The improved morphology of this balitoridae, especially linking the pelvic plate to the vertebral column, is a big part of why this family study is so exciting.’
Between the cartilaginous region of this species are stronger sacral rib connections that support the fins and spinal column that enable them to walk out of the water like a tetrapod, such as a lateral-sequence.
‘These fish take into account the structural need to support terrestrial walks that are not found in other fish.’
‘The three anatomical groups we’ve discovered have a major impact on the biomechanics of this locust’s terrestrial locomotion, and the relationship between these fish suggests the ability to adapt to fast-flowing rivers that were genetically passed, more precisely than the morphology itself. ‘
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