Mirounga angustirostris
E451674
Mirounga angustirostris is a large marine mammal known for its extreme sexual dimorphism, deep-diving ability, and breeding colonies along the Pacific coast of North America.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mirounga angustirostris canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4542565 — 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: Mirounga angustirostris Context triple: [northern elephant seal, species, Mirounga angustirostris]
-
A.
Eubalaena australis
Eubalaena australis is the southern right whale, a large baleen whale species found in the Southern Hemisphere known for its robust body, callosities on its head, and slow, coastal migratory behavior.
-
B.
Adélie penguin
The Adélie penguin is a small, black-and-white Antarctic penguin species known for its large breeding colonies on sea ice and rocky coasts around the Southern Ocean.
-
C.
Arctogadus glacialis
Arctogadus glacialis is a small Arctic cod species adapted to life in cold, ice-covered marine waters of the high northern latitudes.
-
D.
Eubalaena
Eubalaena is a genus of large baleen whales commonly known as right whales, found in temperate and subpolar oceans.
-
E.
Weddell seal
The Weddell seal is a large, deep-diving Antarctic seal species known for living year-round on sea ice and for its remarkable ability to vocalize underwater.
- 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: Mirounga angustirostris Target entity description: Mirounga angustirostris is a large marine mammal known for its extreme sexual dimorphism, deep-diving ability, and breeding colonies along the Pacific coast of North America.
-
A.
Eubalaena australis
Eubalaena australis is the southern right whale, a large baleen whale species found in the Southern Hemisphere known for its robust body, callosities on its head, and slow, coastal migratory behavior.
-
B.
Adélie penguin
The Adélie penguin is a small, black-and-white Antarctic penguin species known for its large breeding colonies on sea ice and rocky coasts around the Southern Ocean.
-
C.
Arctogadus glacialis
Arctogadus glacialis is a small Arctic cod species adapted to life in cold, ice-covered marine waters of the high northern latitudes.
-
D.
Eubalaena
Eubalaena is a genus of large baleen whales commonly known as right whales, found in temperate and subpolar oceans.
-
E.
Weddell seal
The Weddell seal is a large, deep-diving Antarctic seal species known for living year-round on sea ice and for its remarkable ability to vocalize underwater.
- F. None of above. chosen
Statements (62)
| Predicate | Object |
|---|---|
| instanceOf |
marine mammal
ⓘ
pinniped ⓘ species ⓘ true seal ⓘ |
| adultFemaleColoration | silver-gray to brown ⓘ |
| adultMaleColoration | dark gray to brown ⓘ |
| binomialName | Mirounga angustirostris NERFINISHED ⓘ |
| breedingRangeIncludes |
Baja California
NERFINISHED
ⓘ
California NERFINISHED ⓘ Central California coast NERFINISHED ⓘ Channel Islands of California NERFINISHED ⓘ |
| breedingSeason | winter ⓘ |
| breedingSystem | polygynous ⓘ |
| breedsAlongCoastOf | Pacific coast of North America ⓘ |
| class | Mammalia ⓘ |
| commonName | northern elephant seal NERFINISHED ⓘ |
| conservationStatus | Least Concern ⓘ |
| conservationStatusSystem | IUCN Red List NERFINISHED ⓘ |
| dietIncludes |
fish
ⓘ
rays ⓘ small sharks ⓘ squid ⓘ |
| family | Phocidae NERFINISHED ⓘ |
| femaleMaximumLength | about 2.5 to 3 meters ⓘ |
| femaleMaximumMass | up to about 600 to 800 kilograms ⓘ |
| foragingRangeIncludes |
Aleutian region
NERFINISHED
ⓘ
Gulf of Alaska NERFINISHED ⓘ open North Pacific Ocean ⓘ |
| genus | Mirounga NERFINISHED ⓘ |
| geographicDistribution | eastern North Pacific ⓘ |
| givesBirthOn | land ⓘ |
| hasDeepDivingAbility | true ⓘ |
| hasProboscisInMales | true ⓘ |
| hasSexualDimorphism | true ⓘ |
| historicallyOverexploitedFor | blubber ⓘ |
| infraorder | Pinnipedia NERFINISHED ⓘ |
| kingdom | Animalia ⓘ |
| lactationPeriod | about 3 to 4 weeks ⓘ |
| maleMaximumLength | about 4 to 5 meters ⓘ |
| maleMaximumMass | up to about 2300 kilograms ⓘ |
| matingSystem | harem-based ⓘ |
| maximumRecordedDiveDepth | over 1500 meters ⓘ |
| maximumRecordedDiveDuration | over 80 minutes ⓘ |
| moltsOn | land ⓘ |
| namedAfter | elephant-like proboscis of males ⓘ |
| nativeTo | Pacific Ocean NERFINISHED ⓘ |
| notableBreedingColony |
Año Nuevo State Park
NERFINISHED
ⓘ
Guadalupe Island NERFINISHED ⓘ Piedras Blancas rookery NERFINISHED ⓘ San Nicolas Island NERFINISHED ⓘ |
| order | Carnivora ⓘ |
| phylum | Chordata ⓘ |
| populationRecovery | significant since early 20th century ⓘ |
| primaryPredator |
great white shark
ⓘ
killer whale ⓘ |
| pupColoration | black at birth ⓘ |
| reproduction | single pup per year ⓘ |
| sexualDimorphismType | extreme sexual size dimorphism ⓘ |
| suborder | Caniformia NERFINISHED ⓘ |
| taxonRank | species ⓘ |
| typicalDiveDepth | 300 to 600 meters ⓘ |
| typicalDiveDuration | 20 to 30 minutes ⓘ |
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: Mirounga angustirostris Description of subject: Mirounga angustirostris is a large marine mammal known for its extreme sexual dimorphism, deep-diving ability, and breeding colonies along the Pacific coast of North America.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.