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  • RESEARCH HIGHLIGHT

Rosy octopuses are more warty the deeper they dwell in the sea

Shallow-water residents have nearly smooth skin, but their deep-living brethren are covered in lumps and bumps.
Octopus (Graneledone boreopacifica).

A pastel-coloured octopus, warts and all, sashays along the sea floor in the eastern Pacific Ocean. This species of octopus has more warts the deeper it lives. Credit: NOAA/MBARI

A species of bumpy pink octopus follows a simple rule: the deeper the animals live, the wartier they are.

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Nature 574, 298 (2019)

doi: https://doi.org/10.1038/d41586-019-03004-6

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