Dumbo octopuses live at a depth of thousands of meters in the oceans of this world, in near-freezing water and in absolute darkness. A rare spectacle now provides further insight into this extraordinary habitat: on board a research vessel, a US scientist filmed a dumbo octopus measuring just a few centimeters hatching from its egg. Based on these video recordings and MRI scans of the internal organs, researchers from the Delaware Museum of Natural History, the University of Bonn, the University Hospital Münster, and the Woods Hole Oceanographic Institution were able to document a surprising similarity of the hatchling with adult animals. The unusual find is now being presented in the journal “Current Biology”.