Leeches are annelids or segmented worms, and although closely related to the earthworms, are anatomically and behaviourally more specialised.
The Leech's Journey, From Welsh Lab to American Hospitals - Atlas
Leeches attack bride on wedding day: 'There was so much blood
Leeches - The Australian Museum
Gordian Worms - The Australian Museum
Surveying Biodiversity with Leeches
bubba the leech does stuff! : r/awwnverts
MY GROWING PASSION: Fauna less loved: bloodsuckers.
Leeches: How To Remove, Avoid, and Appreciate Them - We Are Explorers
Marine leech on the eye of a Fiddler Ray - The Australian Museum
Leeches history hi-res stock photography and images - Alamy
Tweed Regional Museum explores history of local medicine in
Tiny new species of leech named for Amy Tan
Leeches - BCLSS