In a vast sunbaked land a remarkable horned lizard roamed the sands and used an extraordinary defense to evade predators like coyotes and foxes. When threatened the lizard increased blood pressure in its head and contracted specific muscles until tiny vessels in its eyes ruptured, launching a stream of blood that could reach five feet. The blood carried bitter chemicals from its diet of harvester ants and, along with its puffed up body and sharp horns, kept danger at bay. | The History Page

The Texas horned lizard is a vicious little critter with the greatest defense mechanism known to lizardkind—as a last resort, they'll strike their enemies with a stream of blood shot straight from their eye. | Great Big Story

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