Our recent footage of this #GlassOctopus raised a lot of questions, so let's "clear up" some facts: This was seen 651m deep at a seamount in Winslow reef complex on Tokelau Ridge in Phoenix Islands Archipelago (US EEZ). During the #PhoenixIslandsCoral expedition Dive 433 https://youtu.be/dvG2GdxKfiQ?t=35175 Glass Octopus can reach 11 cm (4.3 in) in mantle length, 45 cm (18 in) when tentacles are included. This species is very rarely encountered, and is considered one of the least studied cephalo

The #VentUnderworld research team encountered this glass octopus (Vitreledonella) at ~875 meters deep a few days ago. This species is considered one of the least-studied cephalopods: most information scientists have managed to get is from dead specimens found in the stomachs of predators. Clearly the creature is named for its ability to be almost see-through. They switch between transparency and pigmentation to optimize camouflage. Chromatophores (cells that produce color via internal pigment) c