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the claim
Certain fish species can climb trees
the verdict
SUPPORTED
the evidence backs this
Recorded sources
2 sources for · 0 against
Is it true that certain fish species can climb trees?
Yes. Specific fish species, such as certain mudskippers, possess morphological adaptations that enable them to climb trees and other vertical terrestrial surfaces.
Verdict: SUPPORTED · 2 sources for, 0 against · Last checked
The analysis
Papers [0] and [2] explicitly document mudskippers (specifically Periophthalmus variabilis) climbing trees and rocks, establishing that certain fish species can indeed climb trees. The remaining papers discuss general amphibious locomotion, terrestrial movement, or fish biology without contesting this specific capability.
Evidence for · 2
Demonstrates that the mudskipper species Periophthalmus variabilis climbs trees and rocks.
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Wicaksono, A., Hidayat, S., Damayanti, Y., Jin, D. S. M., Sintya, E., Retnoaji, B., & Alam, P. (2016). The significance of pelvic fin flexibility for tree climbing fish.. doi.org. https://doi.org/10.1016/j.zool.2016.06.007
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More for · 1
Observes that Periophthalmus variabilis launches and lands on inclined-to-vertical surfaces such as rocks and trees.
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Wicaksono, A., Hidayat, S., Retnoaji, B., & Alam, P. (2020). The water-hopping kinematics of the tree-climbing fish, Periophthalmus variabilis.. doi.org. https://doi.org/10.1016/j.zool.2020.125750
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Receipt History
first checked05 Aug 2026
judged → SUPPORTED · 7205 Aug 2026
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