Eyestalk
In anatomy, an eyestalk is a protrusion that extends the eye away from the body, giving the eye a better field of view. It is a common feature in nature and frequently appears in fiction.In nature
Eyestalks are a specialized type of tentacle. Tentacles may also have olfactory organs at their ends. Examples of creatures with olfactory tentacles include snails, the trilobite superfamily Asaphida, and the fly family Diopsidae. In slugs and snails, these tentacles will regrow if severely damaged, and in some species, are retractable.Gallery
