Gorn

The Gorn are a species of ectothermic, reptilianoid humanoid sapients with green, rubbery skin and an average height of approximately two meters. They are notable stronger than many humanoids, albeit slower and less agile but with greater stamina. As with most ectotherms, they prefer warmer temperatures, although their brains will likely addle at some heat point.

Some Humans have underestimated the Gorn because of a prejudicial opinion that all reptiles are less intelligent than mammals. This is an unwise belief, as Gorns are at least as intelligent as Humanity.

Biology
Their ears are simple holes in the side of their skulls, which may lead to a tympanic membrane such as that seen in lizards and frogs on Earth. Their mouths boast an impressive array of sharp teeth as well, indicating a carnivorous lifestyle, while the hands and feet both possess vicious claws.

It has been quipped that the Gorn are comparable to the Earth's extinct Velociraptor species, based on the Gorn's size and bite radius, although this is likely a misunderstanding, as velociraptors were only the size of turkeys; the likely intended comparison was another dromaeosaurid such as Deinonychus.

The eyes of the Gorn are of interest to some, as they come in two very different styles; some appear silvery and faceted much like the compound eyes of insects, while others have typical humanoid eyes complete with pupils. This may indicate that one or the other may be caused by technology, or a difference in gender. It is extremely unlikely that they are subspecies of one another due to the massive difference here. It is imperative to note that Gorns with humanoid eyes have only been observed in the Mirror Universe.

Alternate Realities
In one alternate universe (Star Trek, the game), the Gorn are a cruel and militaristic imperialistic race that rules a galaxy and attempts to invade and conquer the Milky Way Galaxy. In their home galaxy they enslaved or exterminated every race, and strip mined every world. Being masters of genetic engineering they possessed bio-mechanical weapons that combined technological and organic elements.

The Gorn Hegemony of another timeline (Star Trek Online), were conquered by the Klingons in the early 25th century. They formed a significant part of the military forces of the Klingon empire and some of their warship classes were adopted by the Klingon Defense Forces.

In another universe (Star Trek: Typhon Pact), the Gorn Hegemony together with five other interstellar powers (e.g. Tholians and Romulans) formed the Typhon Pact in the late 24th century after the Borg Invasion of 2381. It was an alliance that stood in opposition against the Khitomer Accords, an interstellar alliance consisting of several interstellar powers (e.g. the United Federation of Planets and the Klingons).