Tushepta are a little known Xenos race. Tushepta resemble shaggy furred humanoids with a pair of beady, squinting eyes, a wide piglike nose, and descending tusks being their only notable facial characteristics. They're pretty much a wookiee mixed with a walrus and given even more fur.
The only thing known about the Tushepta is that they were encountered by the Imperium during the Great Crusade, being mentioned in passing by Horus.
This means that, likely, even if they were the most savage aliens around, or so peaceful they made the Amish look like brutes, the Imperium completely wiped them out.