Yangtze river dolphin (baiji)
E85260
The Yangtze river dolphin, or baiji, was a nearly blind freshwater dolphin endemic to China’s Yangtze River and is now considered functionally extinct due to habitat degradation and human activity.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Yangtze River dolphin | 3 |
| Baiji | 1 |
| Chinese river dolphin | 1 |
| Yangtze river dolphin (baiji) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T686950 — 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.
Target entity: Yangtze river dolphin (baiji) Context triple: [Yangtze River, formerNotableSpecies, Yangtze river dolphin (baiji)]
-
A.
Atlantic white-sided dolphin
The Atlantic white-sided dolphin is a small, agile marine mammal found in the cold temperate waters of the North Atlantic Ocean, known for its striking black, white, and yellowish coloration and highly social behavior.
-
B.
Sumatran rhinoceros
The Sumatran rhinoceros is a critically endangered, small and hairy rhino species native to Southeast Asian forests, known as the most threatened of all living rhinoceroses.
-
C.
West Indian manatee
The West Indian manatee is a large, slow-moving, herbivorous marine mammal native to the warm coastal waters and rivers of the Caribbean and southeastern North America, where it is considered a vulnerable species.
-
D.
Mediterranean monk seal
The Mediterranean monk seal is one of the world’s most endangered marine mammals, a rare earless seal native to the Mediterranean and adjacent seas.
-
E.
Naga
Naga is a city in the Bicol Region of the Philippines known as a major religious, cultural, and commercial center, particularly famed for the annual Peñafrancia Festival.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Yangtze river dolphin (baiji) Target entity description: The Yangtze river dolphin, or baiji, was a nearly blind freshwater dolphin endemic to China’s Yangtze River and is now considered functionally extinct due to habitat degradation and human activity.
-
A.
Atlantic white-sided dolphin
The Atlantic white-sided dolphin is a small, agile marine mammal found in the cold temperate waters of the North Atlantic Ocean, known for its striking black, white, and yellowish coloration and highly social behavior.
-
B.
Sumatran rhinoceros
The Sumatran rhinoceros is a critically endangered, small and hairy rhino species native to Southeast Asian forests, known as the most threatened of all living rhinoceroses.
-
C.
West Indian manatee
The West Indian manatee is a large, slow-moving, herbivorous marine mammal native to the warm coastal waters and rivers of the Caribbean and southeastern North America, where it is considered a vulnerable species.
-
D.
Mediterranean monk seal
The Mediterranean monk seal is one of the world’s most endangered marine mammals, a rare earless seal native to the Mediterranean and adjacent seas.
-
E.
Naga
Naga is a city in the Bicol Region of the Philippines known as a major religious, cultural, and commercial center, particularly famed for the annual Peñafrancia Festival.
- F. None of above. chosen
Statements (56)
| Predicate | Object |
|---|---|
| instanceOf |
cetacean
ⓘ
endemic species ⓘ extinct species ⓘ freshwater dolphin ⓘ mammal ⓘ toothed whale ⓘ |
| averageLength | about 2.3 to 2.5 meters ⓘ |
| averageWeight | about 135 to 230 kilograms ⓘ |
| bodyColor |
bluish gray
ⓘ
pale underside ⓘ |
| causeOfDecline | intensive human activity on the Yangtze River ⓘ |
| class | Mammalia ⓘ |
| commonName | baiji ⓘ |
| conservationStatusSystem |
IUCN Red List of Threatened Species
ⓘ
surface form:
IUCN Red List
|
| country | China ⓘ |
| culturalSignificance | known as the "Goddess of the Yangtze" in Chinese folklore ⓘ |
| diet |
fish
ⓘ
small freshwater fish ⓘ |
| distribution |
Lake Dongting
ⓘ
surface form:
Dongting Lake
Poyang Lake ⓘ middle and lower reaches of the Yangtze River ⓘ |
| ecologicalRole | apex predator in Yangtze freshwater ecosystem ⓘ |
| endemicTo | China ⓘ |
| eyeAdaptation | poor eyesight ⓘ |
| eyeCharacteristic | very small eyes ⓘ |
| family | Lipotidae ⓘ |
| feedingBehavior | active predator ⓘ |
| genus | Lipotes ⓘ |
| gestationPeriod | about 10 to 11 months ⓘ |
| habitat |
freshwater river
ⓘ
large turbid river channels ⓘ |
| IUCNStatus | Critically Endangered (Possibly Extinct) ⓘ |
| kingdom | Animalia ⓘ |
| lastConfirmedSurvey | 2006 Yangtze River survey ⓘ |
| lastConfirmedSurveyResult | no individuals found ⓘ |
| lifespan | estimated up to 24 years ⓘ |
| maximumLength | around 2.7 meters ⓘ |
| namedBy | John Edward Gray ⓘ |
| nativeTo | Yangtze River ⓘ |
| order | Cetacea ⓘ |
| phylum | Chordata ⓘ |
| primaryThreat |
bycatch in fishing gear
ⓘ
dam construction ⓘ habitat degradation ⓘ overfishing ⓘ pollution ⓘ ship traffic ⓘ |
| rangeType | riverine ⓘ |
| reproduction | gives birth to a single calf ⓘ |
| scientificName |
Lipotes
ⓘ
surface form:
Lipotes vexillifer
|
| sensoryAdaptation | echolocation ⓘ |
| sexualDimorphism | females larger than males ⓘ |
| snoutCharacteristic | long narrow beak ⓘ |
| statusDescription | functionally extinct ⓘ |
| taxonRank | species ⓘ |
| yearDescribed | 1870 ⓘ |
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.
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.
Subject: Yangtze river dolphin (baiji) Description of subject: The Yangtze river dolphin, or baiji, was a nearly blind freshwater dolphin endemic to China’s Yangtze River and is now considered functionally extinct due to habitat degradation and human activity.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.