### Texas Horned Lizard
Phrynosoma cornutum
It defends itself by shooting a five-foot stream of foul-tasting blood directly out of its own eyes.
The Story
Picture this: a hungry coyote corners a small, spiky reptile called the Texas Horned Lizard (Phrynosoma cornutum). The mammal opens its jaws for a quick snack. But instead of running, the lizard plays its trump card. It weaponizes its own face, unleashing a high-pressure stream of blood directly out of its eyes, nailing the predator right in the mouth from up to 5 feet away.
The coyote drops the lizard immediately, sputtering and wiping its snout. Why? Because this blood isn't just a bizarre distraction—it tastes absolutely awful. Scientists believe the lizard borrows noxious chemicals from its diet of venomous harvester ants, turning its own circulatory system into a biological deterrent.
Because this attack is purely a foul-tasting irritant and entirely non-toxic, the lizard’s raw Power score is low (25). But deliberately rupturing your own face-veins earns a massive 95 in Weirdness. To pull this off, the lizard expels up to 6% of its total body weight in blood in a single squirt!
How It Works
- Autohemorrhaging: This is the scientific term for intentionally bleeding to defend yourself. - The Pressure Cooker: When attacked, the lizard tightly restricts the blood flow trying to leave its head. This causes blood to pool and pressure to skyrocket inside the sinus orbitalis—the cavities right behind its eyeballs. - The Blowout: The internal pressure builds until tiny blood vessels around the lizard's eyelids literally burst. The pressurized liquid is forced through the conjunctival sac (the inside of the eyelid) and shoots out into the air like a biological squirt gun.
