Blood sample collection in lizards is an important technique. This column describes techniques for sample collection from the ventral coccygeal vein and the ventral abdominal vein. The ventral ...

What that advantage might be is unknown. The green comes from biliverdin, a byproduct of dying red blood cells. The lizards have it in such great abundance—20 times more than the highest concentration ...

The short-horned lizard is often referred to as a “horned ... kingdom’s most bizarre defensive mechanisms: they shoot blood from their eyes. The ominous squirting blood emanates from ducts ...