Castor canadensis
E739701
Castor canadensis, commonly known as the North American beaver, is a large, semi-aquatic rodent renowned for building dams and lodges that significantly shape freshwater ecosystems across much of North America.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Castor canadensis canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T8519820 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Castor canadensis Context triple: [Castorimorpha, notableMember, Castor canadensis]
-
A.
Castor
Castor is a figure from Greek mythology, one of the Dioscuri twins (with his brother Pollux), known as a patron of sailors and horsemen.
-
B.
Castor
Castor is a prominent peak in the Pennine Alps on the border between Switzerland and Italy, known for its twin-summit pairing with the nearby mountain Pollux.
-
C.
Castor
Castor is a major early expansion for the sci-fi MMORPG EVE Online that introduced significant gameplay features and content updates to the universe.
-
D.
Calamis
Calamis was an ancient Greek sculptor renowned for his elegant and refined bronze works in the early Classical period.
-
E.
Euryale
Euryale is one of the three Gorgon sisters in Greek mythology, known for her monstrous appearance and petrifying gaze.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Castor canadensis Target entity description: Castor canadensis, commonly known as the North American beaver, is a large, semi-aquatic rodent renowned for building dams and lodges that significantly shape freshwater ecosystems across much of North America.
-
A.
Castor
Castor is a figure from Greek mythology, one of the Dioscuri twins (with his brother Pollux), known as a patron of sailors and horsemen.
-
B.
Castor
Castor is a prominent peak in the Pennine Alps on the border between Switzerland and Italy, known for its twin-summit pairing with the nearby mountain Pollux.
-
C.
Castor
Castor is a major early expansion for the sci-fi MMORPG EVE Online that introduced significant gameplay features and content updates to the universe.
-
D.
Calamis
Calamis was an ancient Greek sculptor renowned for his elegant and refined bronze works in the early Classical period.
-
E.
Euryale
Euryale is one of the three Gorgon sisters in Greek mythology, known for her monstrous appearance and petrifying gaze.
- F. None of above. chosen
Statements (60)
| Predicate | Object |
|---|---|
| instanceOf |
rodent
ⓘ
species ⓘ |
| activityPattern | nocturnal ⓘ |
| adaptation |
ever-growing incisors
ⓘ
valvular ears and nostrils ⓘ webbed hind feet ⓘ |
| averageLitterSize | 2–4 kits ⓘ |
| bodyLength | 74–90 centimeters ⓘ |
| bodyMass | 11–32 kilograms ⓘ |
| canStayUnderwaterFor | up to 15 minutes ⓘ |
| chromosomeNumber | 2n=40 ⓘ |
| class | Mammalia ⓘ |
| commonName |
American beaver
ⓘ
North American beaver ⓘ |
| describedBy | Carl Linnaeus ⓘ |
| diet | herbivorous ⓘ |
| distinguishedFrom | Castor fiber by skull and tail morphology ⓘ |
| eats |
aquatic plants
ⓘ
cambium ⓘ leaves ⓘ tree bark ⓘ twigs ⓘ |
| ecologicalImpact |
creates wetlands
ⓘ
increases habitat complexity ⓘ modifies hydrology ⓘ |
| ecologicalRole | ecosystem engineer ⓘ |
| economicUse |
castoreum
ⓘ
fur ⓘ |
| family | Castoridae ⓘ |
| furType | dense waterproof fur ⓘ |
| genus | Castor ⓘ |
| habitat |
lakes
ⓘ
ponds ⓘ rivers ⓘ streams ⓘ wetlands ⓘ |
| historicalImpact | intensive fur trade in North America ⓘ |
| introducedTo |
Asia
ⓘ
Europe ⓘ South America ⓘ |
| iucnStatus | Least Concern ⓘ |
| kingdom | Animalia ⓘ |
| lifespanInCaptivity | up to 20 years ⓘ |
| lifespanInWild | 10–12 years ⓘ |
| nativeTo |
Canada
ⓘ
North America ⓘ United States ⓘ
linked to:
United States of America
|
| notableFor |
dam building
ⓘ
ecosystem engineering ⓘ lodge construction ⓘ |
| order | Rodentia ⓘ |
| parentTaxon | Castor ⓘ |
| phylum | Chordata ⓘ |
| reproduction | viviparous ⓘ |
| similarTo | Castor fiber ⓘ |
| socialStructure |
family groups
ⓘ
monogamous pairs ⓘ |
| tailType | broad flattened tail ⓘ |
| taxonRank | species ⓘ |
| yearDescribed | 1758 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Castor canadensis Description of subject: Castor canadensis, commonly known as the North American beaver, is a large, semi-aquatic rodent renowned for building dams and lodges that significantly shape freshwater ecosystems across much of North America.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.