- "When facing Krootox I have three main weapons of choice. Autocannon, autocannon, or autocannon."
- ―Gunnery Corporal Vatis Jan, 76th Gathalamor Heavy Grenadiers fire support company
A salutary example of Kroot dead-end evolution, the Krootox are massive brutes descended from those Kroot who consumed the flesh of especially muscular and barbaric beasts. These kindreds became locked into a downward spiral of evolution, losing their intelligence and with it their ability to forge their own genetic future. The result is a hugely muscled, oversized variant of Kroot physiology, its mind capable of little more than unreasoning brutality.
Were it not for the fact that the Kroot have found a use for the Krootox, the line might have died out generations ago, but instead, they are a common sight in Carnivore Kindreds all over the Tau Empire and beyond. When domesticated it becomes attached to its masters to the extent that it will die to protect them.