Bajoran

The Bajorans are a sapient humanoid species native to the Milky Way's Alpha Quadrant planet of Bajor. They became warp capable in 2369, although their civilization is much older.

Biology
The Bajorans look very similar to humans, only being distinguished by 4-7 horizontal creases on the nose. The Bajoran heart is mirrored on a horizontal axis unlike a Human's. A puncture in a ventricle of the heart will instantly kill a Bajoran. The Bajorans' blood is red. The Bajoran pregnancy lasts for only 5 months and the pregnant Bajoran will often feel sick during this period. The Bajoran lifespan is at least 100 years. However, the only source for this is that a Bajoran claimed to be 100, but she appeared more like a healthy 20th or 21st century human in her 70s and considering the age of their race, it is likely that they can live longer.

History
The Bajorans are a very old race; one the oldest in the Alpha Quadrant. Their species has been around for half a million (500,000) years. The ancient Bajorans were renowned for their science, arts, math and philosophy. Their civilization flourished about 25,000 years ago, during the first republic. The next great phase of Bajoran civilization began 10,000 years ago when the first signs of the Prophets were discovered. They first developed space flight in the 16th century, traveling in solar ships, but did not become warp capable until the late 24th century. The Cardassians invaded and annexed the planet Bajor in 2328. The Bajoran people were enslaved and their resources were stolen. As a result, the Bajorans rebelled against the Cardassians and eventually reconquered their freedom in 2369. They were then offered membership by the United Federation of Planets, but that was delayed following the discovery of the Bajoran wormhole. Still, Bajorans became political allies of the Federation, even though they weren't actual members.