Mike Clinton
Introduction: Leeches beyond bloodletting
Leeches have a long and storied history, with evidence of their use in medicine dating back to ancient civilizations like the Egyptians and Greeks. However, these fascinating creatures are much more than just tools for bloodletting. Leeches have unique anatomy and feeding habits that make them valuable in modern medicine and conservation efforts. In this article, we’ll explore the world of leeches and uncover the many ways they contribute to science and society.
Anatomy: Understanding the leech’s unique structure
Leeches are segmented worms that belong to the class Hirudinea. They have a flattened body shape with a sucker at each end. These suckers are used for locomotion, attachment, and feeding. Leeches also have a closed circulatory system, a relatively simple digestive tract, and specialized sensory structures that allow them to detect prey and potential threats. One of the most notable features of leech anatomy is their ability to regulate their own body size by expanding or contracting their skin. This allows them to accommodate large meals and survive in a variety of environments.