Scalosians were the inhabitants of the planet Scalos. Prior to the 2260s, most of the inhabitants were made infertile due to a radiation sickness. Their biochemistry had accelerated to a point that they experienced hours as other lifeforms experienced minutes. Once a nation of 900,000, their numbers rapidly declined until there were only five of them left by 2268. Deela was their queen. In 2268, they hijacked the USS Enterprise in an effort to repopulate their race with the male crew. Captain Kirk was able to stop them and return them to their native Scalos. (TOS: "Wink of an Eye" )