Question: Why octopuses throw ink?

Sarah-Jane Walsh answered on 24 Jun 2013:

Primarily it’s a defence mechanist aiming to startle the attacker or to cloud their vision so that they can’t see where the octopus escapes too! It’s not really ink, it’s actually made of melanin, that what we have in our skin which gives it its colour and in our hair. Albinos are animals which have no melanin!

Did you know an octopuses ink is black but a cuttlefish’s is slightly blue!

It’s edible too, in some restaurants you can get squid ink pasta!