Using almost entirely non-invasive scanning techniques instead of the standard highly invasive and sometimes fatal lab tests and dissections, researchers from the University of Bonn successfully identified the never-before-seen Grimpoteuthis imperator, or Dumbo octopus.
© Christina Sagorny et al, BMC Biology, 2021The G. imperator, a new subspecies of an already rare breed of octopus, was discovered in the northern part of the Emperor Seamounts, an underwater mountain ridge in the northwest Pacific Ocean. They live at depths of 7,000 meters (22,966 feet). The researchers suggested the common name for the critter: Emperor Dumbo in English, Dumbo Impérial in French, and Kaiserdumbo in German.
© Christina Sagorny et al, BMC Biology, 2021
Rather than dissecting Dumbo, the marine biologists instead used high-field magnetic resonance imaging and micro-computed tomography scans to ascertain its origin before carrying out minimally invasive gene analysis on tissue samples to verify it was indeed a new species.
© Christina Sagorny et al, BMC Biology, 2021Measurements and digital photo comparisons with other types of Dumbo octopus – so called because of its two head fins, which resemble the large elephant ears sported by the lovable Disney character – were undertaken to settle the matter.
The researchers were also surprised to encounter a systemic heart in the new deepwater Dumbo, which had hitherto never been described in octopus species before.
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