Saiyans are a race of endangered aliens. They are naturally aggressive warriors who have great powers and technology. Most Saiyans travel from planet to planet destroying the people who live there so that they can sell the planet and worked for Frieza. Most Saiyans can be easily noticed by their tail but some have lost their tails. Saiyans without tails include Goku, Vegeta, Gohan, Trunks, Goten and Broly. The Saiyans lived on the planet Vegeta which was later destroyed by Frieza. 