Yes.
Of the invertebrates, squid an octopuses have the most developed brains, in part to process information coming from their highly sophisticated eyes.
the part of a squid's brain that controls the muscle siphon
yes, it does
food good
food good
Same as yours, to control the body.
The giant squid has eyes that are larger than its brain. This allows it to have excellent vision in the deep ocean where it lives.
The shrimp's food passes through its brain on the way to its stomach. This happens because the shrimp's brain and esophagus are connected.
The anus of an octopus is behind its brain.
Squids and other cephalopods have shown response to classical conditioning. Some squid use changes in skin color and pattern to communicate messages. Squid and octopi have the largest brain-to-body mass ratios of all invertebrates.
Like humans, cephalopods like squid have highly developed nervous systems. However, they are organised very differently to those of vertebrates, being far less centralised. In squid and octopuses, a large proportion of their neural mass is located in their arms, rather than what would be traditionally considered their brain. The Brachial ganglia are simply the large neural masses that are found in the arms of the squid, giving each tentacle a large degree of independence, and operating alongside the brain.
so the squid can see it's prey and predators and other objects
May helpAlthough the giant squids brain is ridiculously complex it is actually exceptionaly small, especialy in comparison to the rest of it. The brain of the giant squid is built around the esophagus and weighs an average of only 22 grams.