Both will squirt clouds of ink, partly made of melanin, to confuse attackers and use that jet propulsion to make a quick ...

It is used to kill prey and to tear it into pieces small enough to ingest. Squid use a jet propulsion system to power themselves through the water and have three hearts that pump blue blood.

Tusoteuthis moved via jet propulsion—it expelled water through a siphon on the lower part of its body. Squirts of dark inky fluid sometimes helped the squid blind and confuse predators like the ...