Common Octopus
Octopus vulgaris
Explore the complete life journey from birth to maximum documented longevity. Move the interactive age slider below to see real-time biometric growth ranges, developmental milestones, metabolic changes, and ontogenetic stages.

Interactive Lifespan & Growth Scrubber
Drag the slider or click any milestone step to observe dynamic biometrics and physiological changes.
Copepods, crab larvae, plankton.
Drifts in sunlit pelagic ocean gyres.
Taxon-Specific Life Stage Machine
How Common Octopus progresses through distinct morphological phases.
Festooned Egg Strings (1โ2 Months)
Mother weaves 100,000 to 400,000 translucent eggs into hanging festoons inside rocky den. She continuously blows clean water over them without eating for up to 60 days.
- โขEmbryonic chromatophores flash inside transparent egg capsule
- โขInverted embryonic orientation right before hatching
- โขYolk sac utilization
Planktonic Paralarva (30โ60 Days)
Hatches as tiny 2 mm planktonic swimmer. Drifts in open ocean surface waters feeding on crab zoea and copepods.
- โขFounding chromatophores (around 65 color organs)
- โขFounder suckers on each arm (only 3โ4 suckers per arm)
- โขKรถlikerโs bristles aid planktonic buoyancy
Benthic Settler & Rapid Growth (2โ12 Months)
Settles onto seafloor reefs. Undergoes one of the fastest growth rates in the animal kingdom, gaining 2% to 5% of its body weight every single day!
- โข500 million neurons with 2/3 distributed in the 8 independent arms
- โขChromatophore, iridophore, and leucophore 3D camouflage skin system
- โขChitinous beak delivers paralytic cephalotoxin saliva
Adult & Semelparous Senescence
Peak cognitive problem-solving, maze navigation, and dynamic texture-matching. Dies programmed death after mating and egg brooding.
- โขOptic gland hormonal cascade triggers programmed organ shutdown
- โขMale hectocotylus arm delivers spermatophores
- โขThree hearts (1 systemic, 2 branchial) and copper-based blue hemocyanin blood
Growth Timeline Reference Matrix
Standardized peer-reviewed biometric development data.
| Age Milestone | Life Stage | Mantle Length Range | Body Mass Range | Maturity | Dietary Regime |
|---|---|---|---|---|---|
| ๐ฃHatch (Day 0) | Planktonic Paralarva | 2โ3 mm | 1โ2 mg | 0% | Copepods, crab larvae, plankton. |
| ๐3 Months (Benthic Settler) | Young Benthic Octopus | 15โ25 cm | 50โ120 g | 10% | Small crabs, shrimp, snails. |
| ๐1 Year (Prime Adult) | Prime Adult Octopus | 80โ120 cm | 3โ9 kg | 100% | Crabs, lobsters, mollusks, fish. |
Key Milestones in the Life of a Common Octopus
Benthic Settlement
Leaves open pelagic surface waters and descends to seafloor reef den.
Reproduction & Senescence
Mates once; optic gland initiates programmed self-sacrifice to protect egg clutch.
Frequently Asked Questions About Common Octopus Life History
Scientific answers to high-intent queries regarding lifespan and growth.