Lucario is a bipedal dog/wolf/jackal-like Pokémon, with a few raccoon-like characteristics as well. Though it is similar in appearance to Riolu, Lucario has some notable differences, such as having redder eyes. Its fore-paws are black and it has large pointed spikes in place of the oval shaped bumps on Riolu. There is also a third spike protruding in the middle of its chest. Lucario’s ears and muzzle are longer in comparison to Riolu but it retains the black “mask” and red eyes. The “mask” also has an added upper stripe. It also has four black sensory bundles on the back of its head opposed to Riolu, who only had two and were previously located on the side of its head. Additionally, Lucario’s torso is covered in yellow fur with thicker patches on the collar.