This is Toby, a red panda at Houston Zoo. This article lead to this comment:

Don't be fooled. The Red Panda's "cuteness" is simply a reflection of the human tendency to anthropomorphize animals. In reality, the Red Panda is a vicious omnivore, willing to eat (or try to eat) anything it can put into its mouth. Packs of Red Pandas have been know to strip live elk calves to nothing but bone in mere minutes. These predators are primarily nocturnal, and a Red Panda roused from sleep during daylight hours will attack anything that moves, ripping and shredding interlopers with razor-sharp teeth and claws. Red Pandas also are known for their voracious sexual appetites, being one of the few mammals besides humans who copulate outside of estrous. Researchers note that the Red Panda's mating ritual is little more than a "rape orgy" of aggressive males overpowering and mating with equally-aggressive females. Many Red Pandas die during these sessions, and surviving pandas typically eat the corpses of their fallen pack-mates once the mating has completed.

In short, stay clear of Red Pandas in the wild, and don't provoke the creatures in captivity.