📸 PhotoA Pacific Giant Octopus ( Enteroctopus dolfeini ) was observed off Point Piños, California, in August 2004 at a depth of 65 meters during sanctuary sea floor monitoring surveys using the Delta submers
Photo: NOAA/R. N. Lea [1] · Public domain · Wikimedia Commons Source
Giant Pacific Octopus
Enteroctopus dofleini (Giant Pacific Octopus · ミズダコ)
💡 Everyday Comparisons for Size, Mass & Speed
- 📏 Length 3m — ~1.7× the height of a 1.75 m adult human
- ⚖️ Mass 71kg — ~1× the mass of a 70 kg adult human
- ⚡ Speed 20km/h — ~0.5× Usain Bolt's 100 m world-record average speed (37.6 km/h)
Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.
Site-computed relative index from recorded values; not a formal scientific metric.
📖 1. Overview
One of the largest living octopuses, it reaches a maximum arm span of about 4.3 m and a typical adult weight of around 15 kg (maximum recorded weight about 71 kg). Along Korea's East Sea coast, it is called 'Daemuneo (Pimuneo).'
🌐 Wikipedia Summary ExtractThe giant Pacific octopus, also known as the North Pacific giant octopus, is a large marine cephalopod belonging to the genus Enteroctopus and Enteroctopodidae family.
🦴 2. Anatomy & Morphology
It has 3 hearts (1 systemic heart + 2 branchial hearts), blue blood due to copper-based hemocyanin, and two-thirds of its 500 million neurons distributed across its 8 arms, allowing each arm to process information and react independently.
🔍 3. Ecology & Behavior
Capable of unscrewing a jar lid from the inside, escaping mazes, and camouflaging itself to match the exact color and texture of surrounding rocks in 0.3 seconds, it is the foremost genius among invertebrates.
🇰🇷 4. Connection to Korea
True to its Sino-Korean name 'Muneo' (meaning 'literate fish'), it is an iconic species of the marine culture and ecosystem of Korea's East Sea coast.
📚 Sources & References
- • Wikipedia “Giant Pacific octopus”
- • Wikidata Q912404
- • IUCN Red List category LC — latest assessment at iucnredlist.org
- • sealifebase.se — Enteroctopus-dofleini.html
- • Silhouette: PhyloPic — Kurtis Wothe · CC0 1.0 (Related taxon silhouette — Octopodidae)
Recorded dimensions are widely cited representative estimates from public literature and may vary by study or specimen.