多鳍鱼 / Bichir

Lungs and sturdy fins? I help scientists explore air-breathing adventures without mistaking me for your ancestor!
肺加上结实的鳍？我能帮助科学家探索呼吸空气的冒险，但别把我认成你的祖先！

Sources
Developmental plasticity and the origin of tetrapods
https://www.nature.com/articles/nature13708
Full regeneration of the tribasal Polypterus fin.
https://www.pnas.org/doi/10.1073/pnas.1006619109
Deep evolutionary origin of limb and fin regeneration.
https://www.pnas.org/doi/10.1073/pnas.1900475116
Species reference
https://en.wikipedia.org/wiki/Bichir

Research context
Bichirs combine lungs, robust paired fins and a distinctive ray-finned-fish body plan. Experiments and anatomy help separate general adaptations to air and shallow water from traits unique to tetrapod ancestry.