Arctic Zerg Feederlings provides important materials by eating a closest fresh corpses of enemies, leaving no trace behind.

Arctic Zerglings always need to keep their bodies strong in order to survive in extremely cold areas. That's the reason why they are three times larger than their original counterparts. Lots of training in addition to increased resistance provided a higher movement speed, making them the great scout units.

(Zerg Feederling and Zergling belongs to Blizzard)