It oozes and gushes. It's sticky and can be deadly. Blood is our life source. But studying blood can be, well, disgusting. Imagine using leech spit to stop blood clots or even drinking blood to learn about digestive disorders! Featuring the latest scientific research, this humorous hi-lo book dives into gross and weird findings about blood.Witty text sparks interest in STEM for reluctant readers, while fun facts, career features, and critical thinking questions deepen their understanding. Plus, a table of contents, glossary with pronunciations, further resources, and an index enhance comprehension.