Kosrae flying fox
Pteropus ualanus Peters, 1883
The kosrae flying fox (Pteropus ualanus) is a species in the family Pteropodidae, order Chiroptera. Recorded adults weigh about 458.6 g. Its IUCN Red List status is Endangered.
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Quick facts about the kosrae flying fox
- Weight
- 458.6 gsrc for Weight
- Length
- Not recorded
- Lifespan
- Not recorded
- Diet
- Frugivoresrc for Diet
- Main food
- Not recorded
- Habitat
- Not recorded
- Young per litter or clutch
- Not recorded
- Active
- At night (nocturnal)src for Active
- Lifestyle
- Arborealsrc for Lifestyle
- Conservation status
- Endangered (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the kosrae flying fox live?
Not recorded
What is the kosrae flying fox?
The Kosrae flying fox (Pteropus ualanus) is a species of megabat in the genus Pteropus found on the island of Kosrae, Micronesia.
The Kosrae flying fox (Pteropus ualanus) has recovered to 2,000–3,000 bats but faces ongoing threats.
From the Wikipedia article “Kosrae flying fox” (en.wikipedia.org/w/index.php?title=Kosrae_flying_fox&oldid=1332174963), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the kosrae flying fox endangered?
The kosrae flying fox is listed as Endangered on the IUCN Red List: it faces a very high risk of extinction in the wild.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Endangered species.
How is the kosrae flying fox classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderChiroptera
- familyPteropodidae
- genusPteropus
- SpeciesPteropus ualanus Peters, 1883
Synonyms Pteropus keraudren, Pteropus keraudrenius, Pteropus mariannus ualanus, Pteropus ualensis
Other names and names in other languages (12)
- Kosrae flying fox.English
- Kosrae flying-foxEnglish
- Kosrae fruit batEnglish
- Ualan fruit batEnglish
- Ualan fruit batEnglish
- kaloň ualanskýCzech
- Kosrae-FlughundGerman
- Roussette Des Îles KosraeFrench
- Volpe volante di KosraeItalian
- コスラエオオコウモリJapanese
- 코스라에날여우박쥐Korean
- Rudawka nadbrzeżnaPolish
Relatives of the kosrae flying fox
Other species in the same genus Pteropus.

Large flying fox
Pteropus vampyrus
Giant fruit bat
Pteropus medius

Livingstone's fruit bat
Pteropus livingstonii

Mariana fruit bat
Pteropus mariannus

Rodrigues flying fox
Pteropus rodricensis

Samoa flying fox
Pteropus samoensis
CompareKosrae flying fox vs Large flying foxKosrae flying fox vs Giant fruit batKosrae flying fox vs Livingstone's fruit batKosrae flying fox vs Mariana fruit bat
Common questions
Answered only where our data holds the answer.
How big is the kosrae flying fox?
An adult kosrae flying fox weighs 458.6 g, according to values recorded on Wikidata.
Is the kosrae flying fox endangered?
The kosrae flying fox is listed as Endangered on the IUCN Red List, meaning it faces a very high risk of extinction in the wild.
What kind of animal is the kosrae flying fox?
The kosrae flying fox (Pteropus ualanus) belongs to the family Pteropodidae in the order Chiroptera.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1 - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Kosrae flying fox (Pteropus ualanus). Retrieved from https://creaturedata.com/animals/kosrae-flying-fox
“Kosrae flying fox (Pteropus ualanus).” CreatureData, 2026, https://creaturedata.com/animals/kosrae-flying-fox.
@misc{kosrae_flying_fox_2026,
title = {Kosrae flying fox (Pteropus ualanus)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/kosrae-flying-fox},
note = {Data as of 2026-11-11}
}