Leech
ExploreInvertebrate
Leech
Hirudo medicinalis
Leeches are small, slimy creatures that live in water. They have suckers at both ends of their bodies and use them to move and feed.
Habitat: Freshwater
Appearance
The Leech has a soft, segmented body, usually greenish-brown or olive with reddish stripes on its back. It has two powerful suckers, one at each end, allowing it to move and attach firmly. Its flattened, worm-like shape helps it glide through water.
ClassClitellataOrderArhynchobdellidaFamilyHirudinidaeGenusHirudo
Category
InvertebrateRarity
Common
Danger
2/5 · Low
Snaps
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Interesting facts
Leeches have multiple pairs of eyes, usually between 2 and 10 pairs!
Many leeches don't eat blood; some hunt snails, worms, or even tiny insects!
Some leeches can survive for months or even over a year without eating!
The largest leech ever found was nearly 2 feet long! Wow!
Special abilities
Ability
Stealthy Feeder
Leech can release a natural anesthetic into its host's skin, helping it feed undetected and without causing pain.
Ability
Blood-Sucking Superpower
Leech has strong suckers and three sharp, Y-shaped jaws that help it attach firmly and make a small, precise incision.
Ability
Elastic Belly
Leech has an incredibly stretchy body that allows it to consume many times its own weight in blood in one feeding session.
Ability
Healing Helper
Leech can release special compounds that prevent blood clotting and improve blood flow, used in medical procedures.
Measurements & details
- Size
- 10-250 mm
- Lifespan
- 1825-3650 days
- Leg Count
- 0
Diet & Feeding
Many leeches are carnivores, but some drink blood from other animals to survive!
Primary Foods
- blood (fish)
- blood (mammals)
- worms
- snails
- insect larvae
- tadpoles
Foraging Method
- Ambush
Ecological connections
parasitizes
Cattle
Bos taurus
Leeches attach to cattle drinking water.
eaten by
Mallard Duck
Anas platyrhynchos
Ducks sometimes eat leeches found in ponds.
hunts
Earthworm
Lumbricus terrestris
Many leech species hunt and eat earthworms.
parasitizes
Common Frog
Rana temporaria
Some leeches attach to frogs for a blood meal.
Traits
Wildlife
Wildlife encompasses all undomesticated animal and plant life existing in their natural habitats.
Filter Feeder
Filter feeders obtain nutrients by straining suspended food particles and small organisms from water.
Ancient Lineage
This trait signifies organisms belonging to a very old evolutionary group with ancestors dating back millions of years.
Carnivorous
This trait identifies organisms whose diet consists entirely or primarily of animal tissue.
Freshwater
Freshwater habitats include non-saline aquatic environments such as rivers, lakes, ponds, and wetlands, vital for numerous species.
Regenerative
Regenerative organisms possess the ability to regrow lost or damaged body parts, tissues, or organs.
Parasitic
This trait describes organisms that live on or in a host organism, obtaining nutrients at the host's expense.
Vampiric
Vampiric organisms are those that obtain nutrients by feeding on the blood or bodily fluids of other animals.
Nocturnal
Nocturnal animals are primarily active during the nighttime hours, typically resting or sleeping during the day.
Also known as
HirudoMedicinal Leech
Collections
Safety
Danger
2/5 · Low
If you see a leech in the water, don't touch it. Ask an adult for help.
Frequently Asked Questions
How big is Leech?
10-250 mm
How long does Leech live?
1825-3650 days
What does Leech eat?
Many leeches are carnivores, but some drink blood from other animals to survive!
Where is Leech usually found?
Freshwater
How does Leech hunt?
Ambush
How many legs does Leech have?
0
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