Caenorhabditis elegans exhibits positive gravitaxis.
Wei-Long ChenHungtang KoHan-Sheng ChuangHilary K DeBardelebenHaim H BauPublished in: BMC biology (2021)
Gravitaxis is not mediated by passive forces such as non-uniform mass distribution or hydrodynamic effects. Rather, it is mediated by active neural processes that involve sensory cilia and dopamine. C. elegans provides a genetically tractable system to study molecular and neural mechanisms of gravity sensing.
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