6/12/2023 0 Comments Wings of ebonyA fascinating example is the wing-like appendages on batoid fishes (skates and rays) in which the pectoral fins are fused with the head and extend anteriorly. Bensley Professor of Organismal Biology and Anatomy at the University of Chicago said in a press release at the time.Ĭhondrichthyans (all cartilaginous fish) have different fin structures that also exhibit an. “What is surprising is that the extraordinary anatomy of skate fins comes about by simple tweaks to the processes that make the more normal-looking fins of other fish,” senior study author Neil Shubin, PhD, Robert R. Research published by scientists at the University of Chicago in 2015 found that skates and rays evolved their striking, wing-like pectoral fins using repurposed genes. Due to this unique structure, skates and rays are able to not only propel themselves forward along the seafloor but become fearsome predators of the ocean floor. As well as those paired appendages we have seen displayed in tetrapods, the Chondrichthyans (all cartilaginous fish) have different fin structures that also exhibit an exquisite diversity of uses. Vertebrates evolved and diversified alongside key developmental innovations.
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