An experiment to determine this was carried out by Dr. Heinreich Mueller of the Third Reich (1919-1947) He determined that it took 127 leeches 3 hours and 4 minutes to drain the blood out of a young male that weighed 59 Kgs. The Dr. was later tried and executed for war crimes.
Yes, Vermont has leeches in the lakes and many of the ponds located there.
fast running rivers! there so many leeches there!
none
650
60
None. There is nothing in a hole because if there were, it would no longer be a hole!
alot
Many leeches have a proboscis used for swallowing the prey or for sucking its fluids; others have jaws for biting. Many parasitic leeches are able to parasitize a wide variety of hosts. Most of the marine and some of the freshwater leeches are fish parasites. The medicinal leech, Hirudo medicinalis, is one of a group of aquatic bloodsucking leeches with jaws. Another group of jawed bloodsuckers is terrestrial; these leeches live in damp tropical vegetation and drop onto their mammalian prey. Most parasitic leeches attach to the host only while feeding; a single meal may be 5 or 10 times the weight of the leech and provide it with food for several months. The digestive tract of bloodsuckers produces an anticoagulant, hirudin, which keeps the engorged blood from clotting. A few leeches attach permanently to the host, leaving only to reproduce.
Leeches do hunt alone, although a given body of water can contain lots of leeches, and many lone hunters might wind up on the same victim.
0. a leech does not have legs.
650-1000
Leeches are supplied to many hospitals in Canada by Ricarimpex and other companies. They are not widely used in treatments in Canada.