Editing Ferengi (section)

==Physiology== 
On average, Ferengi were shorter than Humans. They had orange-colored skin, blue fingernails, enlarged skulls, wrinkled noses, and sharp teeth. Internally, they had ascending ribs and upper and lower lungs, as well as an unusual four-lobed brain that could not be read by telepathic species such as Betazoids. (DS9: "Bar Association"; TNG: "Lonely Among Us"; TNG: "The Price") Ferengi physiology was similar to that of the Dopterians, of which they were distant relatives. 

Since Kobheerians look very similar to Dopterians, they too might be related to both species. 

There are some episodes that contradict the inability of telepathic species to read Ferengi minds. For example in TNG, Deanna Troi does it on several occasions, though on others she and her mother, a more powerful telepath, claimed an inability to do so. (TNG: "The Price", "Ménage à Troi"). Receptivity to telepathy again featured in DS9: "Facets", when Quark volunteers to host the telepathic memories of one of Jadzia Dax's former hosts. 

The Ferengi's most distinguishing feature was their large ears (called "lobes"), which gave them extremely acute hearing. The lobes of the Ferengi male were larger than those of females. The sensitivity of the ears also made them vulnerable to pain and other problems, including severe infections of the tympanic membrane which, if left untreated, can become fatal. (DS9: "Bar Association") 

Nog once stated "On Ferenginar, we learn about the Continuum while we still have our first set of ears." (DS9: "Treachery, Faith and the Great River") 

It should be noted that it is not known if this statement was to be taken literally or figuratively. It should also be noted that this was one of the rare moments that a Ferengi referred to his lobes as ears. 
The Ferengi heart rate was much faster than that of a Human. When Nog, Rom, and Quark were sent back to 1947 and analyzed by Human doctors, one of the medics commented on Quark's heart rate, "If you were Human, I'd say you just suffered from a heart attack." (DS9: "Little Green Men") 

Otherwise, the Ferengi appeared to have a rather strong immune system. Quark was one of a very few members of the station's crew unaffected by the aphasia virus that struck Deep Space 9 in 2369. This may also have been due to the fact that Ferengi brains are very different than those of other humanoids. (DS9: "Babel") 

Ferengi were known to have lifespans that could exceed one hundred years. Following a cosmetic procedure performed on Vulcan, Ishka commented that her lobes hadn't felt so firm in a century. (DS9: "The Magnificent Ferengi") 

The rainy climate of the Ferengi homeworld and the low-order invertebrates constituting Ferengi cuisine would seem to suggest a species that evolved as foragers living close to the ground. 
When startled, frightened or in pain, Ferengi often emitted a high-pitched scream. (DS9: "Little Green Men", "The Siege of AR-558", "The Circle") Some Ferengi demonstrated a hissing reaction when threatened or in distress not unlike an Earth cat. (DS9: "Sanctuary") 

:Additionally, in the script for "The Last Outpost", it was mentioned how Ferengi had weak eyesight, though this species-specific weakness was never mentioned or utilized again.