They are felinoid, looking like a smaller version of a Bengal tiger.
Unfortunately, they got into a war with the MinSha several hundred years ago and lost. Only a few hundred thousand remain on their homeworld, The rest are scattered around the galaxy. A few of them still work as legitimate mercenaries, but most make their way as pirates or thugs.
"Target of Opportunity" in Luck is Not a Factor, describes what to do with a naked Pushtal.