Castor fiber
E739702
Castor fiber is the Eurasian beaver, a large semi-aquatic rodent known for building dams and lodges in freshwater habitats across Europe and parts of Asia.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Castor fiber canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T8519821 — 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 fiber Context triple: [Castorimorpha, notableMember, Castor fiber]
-
A.
Flax
Flax is a neural network library for JAX that provides a flexible, modular framework for building and training machine learning models in Python.
-
B.
Chía
Chía is a municipality in the department of Cundinamarca, Colombia, known for its rapid urban growth and proximity to the capital city, Bogotá.
-
C.
Fibra Uno
Fibra Uno is a major Mexican real estate investment trust (FIBRA) that owns and operates a large portfolio of commercial properties across Mexico.
-
D.
Senna
Senna is a critically acclaimed 2010 documentary film that chronicles the life, career, and tragic death of legendary Brazilian Formula One driver Ayrton Senna.
-
E.
Hahnenklee
Hahnenklee is a village in the Harz Mountains of Germany, known as a popular tourist resort for hiking, winter sports, and its distinctive stave church.
- 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 fiber Target entity description: Castor fiber is the Eurasian beaver, a large semi-aquatic rodent known for building dams and lodges in freshwater habitats across Europe and parts of Asia.
-
A.
Flax
Flax is a neural network library for JAX that provides a flexible, modular framework for building and training machine learning models in Python.
-
B.
Chía
Chía is a municipality in the department of Cundinamarca, Colombia, known for its rapid urban growth and proximity to the capital city, Bogotá.
-
C.
Fibra Uno
Fibra Uno is a major Mexican real estate investment trust (FIBRA) that owns and operates a large portfolio of commercial properties across Mexico.
-
D.
Senna
Senna is a critically acclaimed 2010 documentary film that chronicles the life, career, and tragic death of legendary Brazilian Formula One driver Ayrton Senna.
-
E.
Hahnenklee
Hahnenklee is a village in the Harz Mountains of Germany, known as a popular tourist resort for hiking, winter sports, and its distinctive stave church.
- F. None of above. chosen
Statements (55)
| Predicate | Object |
|---|---|
| instanceOf |
rodent
ⓘ
species ⓘ |
| activityPattern | nocturnal ⓘ |
| averageBodyLength | 80–100 cm ⓘ |
| averageTailLength | 25–50 cm ⓘ |
| averageWeight | 11–30 kg ⓘ |
| binomialName | Castor fiber ⓘ |
| class | Mammalia ⓘ |
| commonName |
Eurasian beaver
ⓘ
European beaver ⓘ |
| conservationAction | reintroduction programs in Europe ⓘ |
| describedBy | Carl Linnaeus ⓘ |
| diet | herbivorous ⓘ |
| distinguishedFrom | Castor canadensis by smaller skull and different tail shape ⓘ |
| eats |
aquatic plants
ⓘ
leaves ⓘ tree bark ⓘ twigs ⓘ |
| ecosystemImpact |
hydrological modification
ⓘ
wetland creation ⓘ |
| ecosystemRole | ecosystem engineer ⓘ |
| family | Castoridae ⓘ |
| furType | dense waterproof fur ⓘ |
| genus | Castor ⓘ |
| gestationPeriod | about 105–107 days ⓘ |
| habitat |
freshwater rivers
ⓘ
lakes ⓘ streams ⓘ wetlands ⓘ |
| historicalThreat |
habitat loss
ⓘ
hunting for castoreum ⓘ overhunting for fur ⓘ |
| iucnStatus | Least Concern ⓘ |
| kingdom | Animalia ⓘ |
| knownFor |
canal digging
ⓘ
dam building ⓘ lodge construction ⓘ |
| lifespanInWild | up to about 10–15 years ⓘ |
| lifestyle | semi-aquatic ⓘ |
| litterSize | 1–6 kits ⓘ |
| monogamous | true ⓘ |
| nativeTo |
Asia
ⓘ
Europe ⓘ Palearctic region ⓘ
linked to:
Palearctic realm
|
| order | Rodentia ⓘ |
| phylum | Chordata ⓘ |
| reproduction | gives birth once per year ⓘ |
| similarTo | Castor canadensis ⓘ |
| socialStructure | family groups ⓘ |
| tailShape | broad flattened tail ⓘ |
| taxonRank | species ⓘ |
| usesMaterial |
mud
ⓘ
stones ⓘ wood ⓘ |
| 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 fiber Description of subject: Castor fiber is the Eurasian beaver, a large semi-aquatic rodent known for building dams and lodges in freshwater habitats across Europe and parts of Asia.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.