AdvertisementA deep-sea expedition captured a picture of the elusive glass octopus, an almost completely transparent creature. AdvertisementA picture of a glass octopus captured during a previous expedition of the Schmidt Ocean Institute. Schmidt Ocean InstituteLittle is known about the glass octopus, which uses its near-transparency to hide from predators. It is likely, though, that they mate like other octopus species, meaning the male glass octopus delivers sperm to the female using his hectocotylus, or sex tentacle. ROV SuBastian / Schmidt Ocean Institute.

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Persons: —, Eric Schmidt, Wendy Schmidt Organizations: Service, Schmidt Ocean Institute, Bigelow Laboratory, Ocean Sciences, University of Costa, SA, Field Locations: Tengosed, Costa Rica, Maine, University of Costa Rica, El Dorado