Their intelligence is equivalent to that of a human toddler. Their blades are used for stripping bark off the huge 100 to 1,300-foot trees on their homeworld. They never even understood the concept of violence or fighting until the Yeerks showed up.

Īlthough they look fierce, the Hork-Bajir are a race of pacifists. According to Ket Halpak, there is another difference, but claims that it was only for Hork-Bajir to know. Male and female Hork-Bajir are told apart by the number of blades on their heads males have three blades while females have two. Their most notable feature is that they have huge, long blades all over their bodies: their elbows, wrists, feet, legs, head, and tail. They have snake-like necks with a sharp beak at the end of their heads, tyrannosaurus-like feet, three claw-tipped fingers and a thumb on each hand, and measure to a height of seven feet in adulthood. The Hork-Bajir are bipedal, have strong reptilian bodies with dark green-black leathery skin, and two hearts. Until the Yeerks began to make them into Controllers.' ― Aximili-Esgarrouth-Isthill Which may be why they were such a peaceful, even poetic, species. They are not a species you want to start a fight with.

And their tails end in long, sharp spikes. Atop their snakelike heads are two more blades, swept forward. There are curved blades at their knees, at their elbows, at their wrists. Each leg ends in a foot, like an Earth bird of prey. They stand on two legs, balanced by a tail. 'Hork-Bajir are incredibly dangerous and very powerful.

In Pain and Blood by Aldrea Alien