What causes the tentacles of the octopus to still move after being cut?

Question

What causes the tentacles of the octopus to still move after being cut?

In: Biology

Answer 1

Octopuses have a unique nervous system – only about 1/3 of their neurons are in their brains, while the rest are in their arms. What this essentially means is that each arm has its own “brain” and can function without any input from the octopus’s actual brain.