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Global Animal Guide

Octopus vs Tarantula

Quick answer

In a hypothetical one-on-one, the Octopus would most likely come out on top decisively, thanks to its more dangerous natural weapons and greater size and power. In reality, animals like these rarely meet, and both would usually avoid a fight.

This is a hypothetical, educational comparison based on typical size, strength, and natural weaponry. In the wild these animals rarely meet, and most encounters end without a fight.

By , Founder Last reviewed How we research & review
Common octopus on a coral reef with curling arms and textured skin Winner Power 42

Invertebrate

Least Concern
Octopus
Weight 3 kg
Length 1 m
Top speed 25 km/h
Strength 45/100
Deadliness 35/100
Intelligence 82/100
Lifespan 2 yr
Tarantula on rocky desert ground with detailed hairy legs Power 18

Invertebrate

Least Concern
Tarantula
Weight 85 g
Length 13 cm
Top speed 2 km/h
Strength 6/100
Deadliness 25/100
Intelligence 5/100
Lifespan 20 yr

Octopus vs Tarantula compared

Side-by-side comparison of the Octopus and the Tarantula
Attribute Octopus Tarantula
Weight 3 kg 85 g
Length 1 m 13 cm
Top speed 25 km/h 2 km/h
Strength 45/100 6/100
Deadliness 35/100 25/100
Intelligence 82/100 5/100
Lifespan 2 yr 20 yr

Octopus vs Tarantula: common questions

Who would win in a fight, a Octopus or a Tarantula?

In a hypothetical one-on-one, the Octopus would most likely come out on top decisively, thanks to its more dangerous natural weapons and greater size and power. In reality, animals like these rarely meet, and both would usually avoid a fight.

Which is bigger, the Octopus or the Tarantula?

The Octopus is heavier, weighing around 3 kg compared with the other's 0.085 kg.

Which is faster, the Octopus or the Tarantula?

The Octopus is faster, reaching about 25 km/h versus 2 km/h.

Which lives longer, the Octopus or the Tarantula?

The Tarantula typically lives longer, up to around 20 years compared with 2 years.

Sources & references

Size, speed, and conservation data are drawn from established zoological references. Compare full profiles for habitat, diet, and behaviour:

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