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The Little Hercules ROV and Camera Platform capture stunning imagery of a deep-sea Chimaera. Chimaeras are most closely related to sharks, although their evolutionary lineage branched off from sharks nearly 400 million years ago, and they have remained an isolated group ever since. Like sharks, chimaeras are cartilaginous and have no real bones. The lateral lines running across this chimaera are mechano-receptors that detect pressure waves (just like ears). The dotted-looking lines on the frontal portion of the face (near the mouth) are ampullae de lorenzini and they detect perturbations in electrical fields generated by living organisms.
Video courtesy of NOAA Okeanos Explorer Program, INDEX-SATAL 2010.
Related Links
INDEX-SATAL 2010 Exploration: Daily Updates
