Yrrulk'kto, like all tuk'ata, is something like a combination of a lizard and cat.
He is a full 13 feet long, and 6 feet tall at the shoulder. He has vicious ten-inch claws and six-inch fangs. His glossy coat, similair to that of a well-groomed showhorse, is a deep dark blue, with shining silver stripes across his upper legs, down his back, and in a spiderweb pattern across his face. His eyes shine with a bright golden-yellow hue that hints at the passion and strength he possesses, as well as show some of the budding wisdom and leadership he is beginning to develop. Again, like all tuk'ata, his intelligence is somewhere between animal and human, and he and other tuk'ata can communicate telepathically, though sharing this communication with other beings is extremely difficult.