Variation
Rimmer M, J Peacock W, Shivkumar K, Mori S. Rare bilateral anatomical variation of the lateral thoracic artery: duplicated arteries with unique origins and pathways.[...]
Habib MB, Hone DW. Intraspecific variation in the pterosaur Rhamphorhynchus muensteri-implications for flight and socio-sexual signaling. PeerJ. 2024 Jul 18;12:e17524. doi: 10.7717/peerj.17524. PMID: 39035160; PMCID: PMC11260407.