Leeches of kookal village

Leeches are blood-sucking worms that belong to the class Hirudinea. They are typically found in freshwater environments, but some species can also be found in marine and terrestrial habitats. Historically, leeches have been used for medical purposes, as their saliva contains substances that can prevent blood from clotting. Today, they are occasionally used in specific medical procedures, such as the reattachment of severed body parts or in the treatment of certain circulatory disorders. Additionally, leeches are of ecological importance as they play a role in aquatic ecosystems by helping to control populations of aquatic animals.