The brain itself is squish and soft. There are lines all over it too which helps to give it texture. Hope I helped!! :)
Human Brains are similair in structure to a sheeps brain, sheep have larger olfactory bulbs though, sheeps brains are also not a large as humans.
in sheep the olfactory bulb and pineal are larger. sheep have a smaller cerebellum.
No, the retina is a part of the eye.