Saurian

Saurians, also known as Raptors, are fictional creatures found in Mortal Kombat. They are reptilian humanoids who evolved from the dinosaurs. Standing on two legs and having bigger brains than their ancestors, they have the potential for more complex thought. They can also appear to alter their form to become invisible or look human. They have a matriarchal society, and any Saurian that has drifted away from the influence of the matriarch or a surrogate slowly begins to lose their ability to look human.

They once thrived within Earthrealm, but were driven from their home by the war waged between the Elder Gods, Raiden, and Shinnok. They fled to the realm of Zaterra, where they thrived once more. Eventually, Shao Kahn, the Emperor of Outworld, invaded and merged their realm with his own kingdom. The Saurians were seemingly driven to extinction within Outworld. There are only two confirmed survivors: Reptile and Khameleon. Chameleon may also be a member of this race. However, Reptile's Armageddon ending shows another female Saurian, possibly the race's long-dead matriarch, which Boon has confirmed will play a big role in restoring the Saurian race in future games.

A picture in Mortal Kombat Deadly Alliance Krypt shows that Reptile's race (Saurians) are evolved from sea creatures.