![]() They have a mind of their own and a personality as well. The giant Dracula leeches are intelligent creatures and very lively and fun to maintain and look after. They become reproductively mature in about a year. It generally takes about 2 weeks for the eggs to hatch into little leeches-about 5 per cocoon. Some parasitic species feed exclusively on invertebrate hosts, such as worms, other leeches, snails, and crustaceans, but most of them parasitize vertebrates (species that have backbones). Leeches can be carnivores, detritivores, but are mostly parasitic. They are most common in warm, protected shallow areas where currents are minimal and shelter is provided by plants, stones and debris. Leeches live in fresh water and are mainly surface dwellers they move overtop the river bottom rather than through it. If a shadow appears above them, they quickly detect it. Leeches use their eyes primarily to detect changes in ambient light. The medicinal leech has five pairs of eyes, each with about 50 photoreceptors. When the leech bites, the jaws are moved in a sawing motion to open the wound. But a leech has 3 jaws, each with a hundred teeth, making your total of 300. The heart sphincter, located in the posterior section of each heart segment, directs blood flow differently in the two modes. The segmented hearts propel blood through the closed circulatory system of the medicinal leech and switch every 20-40 beats between two constriction patterns. The bulk of it is storage.” A fed leech can swell to up to five times its body weight. Leeches has 32 brains because physiologically, every ganglion regulate its corresponding segment and operate independently, it is said to physiologically possess 32 brains How many hearts does a leech haveĪ leech has two hearts, one on each side. How many brains does a leech haveĪ leech's internal structure is divided into 32 separate segments, and each of these segments has its own brain. They have a distinct head end with a mouth consisting of sharp cutting beaks located within the head sucker. They are usually flattened dorso-ventrally and have distinct suction disks (suckers) on either end of their bodies. Leeches are segmented worm-like creatures. Many have evolved to have impressively specialised food sources: one desert variety lives in camels’ noses another feeds on bats. Not all leeches suck blood and not all bloodsucking leeches seek the blood of humans. The leech is an invertebrate animal belonging to the phylum Annelida, a zoological category that includes more than 15,000 species of segmented bristle worms and 650 species of leeches in the subclass Hirudinea. Leeches are creatures with 32 brains, 2 hearts, 300 teeth grouped in 3 jaws, five pairs of eyes. ![]()
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