Fact not true about octopuses

XAT 2026 · GK · Easy · General Knowledge

Which of the following is NOT true about octopuses?

A.
Their blood emits a radium-like glow under moonlight.
B.
They have three hearts.
C.
They can eject a cloud of ink which creates smoke-screen effect, to escape predators.
D.
They usually have a lifespan of around 1-5 years.
E.
They can regrow their lost arms.

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