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Limits RegistryA female deep-sea octopus (Graneledone boreopacifica) was observed by MBARI's remotely operated vehicles brooding her eggs for about 53 months (4.5 years) at 1,397 m depth in Monterey Canyon, California, the longest brooding period known for any animal. She was not seen eating during that time.
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A female deep-sea octopus (Graneledone boreopacifica) was observed by MBARI's remotely operated vehicles brooding her eggs for about 53 months (4.5 years) at 1,397 m depth in Monterey Canyon, California, the longest brooding period known for any animal. She was not seen eating during that time.
The longest continuous egg-brooding period documented in any animal.
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Permanent ID limitsregistry.com/limits/LR-LONGEST-EGG-BROODING-DEEP-SEA-OCTOPUS
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Limits Registry. LR-LONGEST-EGG-BROODING-DEEP-SEA-OCTOPUS. Longest egg-brooding period of any animal. 2026.