CreatureData

Indri

Indri indri (Gmelin, 1788)

CRCritically Endangeredprimates

The indri (Indri indri), also called the indri lemur, is a primate of the family Indriidae, in the superfamily Lemuroidea and suborder Strepsirrhini. It is a medium-sized mammal with an adult body mass of 8 kg, and up to 8.2 kg.

Indri (Indri indri)
Photo: Erik Patel · CC BY-SA 3.0 · Wikimedia Commons

Quick facts about the indri

The indri is a diurnal, arboreal herbivore. It is listed as Critically Endangered on the IUCN Red List, an IUCN threatened category.

Weight
8 kg – 8.24 kgsrc for Weight
Length
64 cm – 72 cmsrc for Length
Lifespan
Not recorded
Diet
Herbivoresrc for Diet
Main food
leavessrc for Main food
Habitat
Not recorded
Gestation
142 days – 150 dayssrc for Gestation
Young per litter or clutch
1.01src for Young per litter or clutch
Age at maturity
6.2 yearssrc for Age at maturity
Litters or clutches a year
0.41src for Litters or clutches a year
Active
By day (diurnal)src for Active
Lifestyle
Arborealsrc for Lifestyle
Conservation status
Critically Endangered (IUCN)src for Conservation status
Countries on record
Not recorded

How big is the indri?

INDRI · LENGTH 72 CMADULT HUMAN · HEIGHT 1.7 M
At 72 cm, the recorded maximum length of the indri is about 42% of the height of an adult human (1.7 m, a fixed reference used for scale).

Photos of the indri

Only freely licensed photos are shown. Each carries its creator and licence.

Indri (Indri indri)
MPMF24 · CC BY 4.0 · Wikimedia Commons
Indri (Indri indri)
MPMF24 · CC BY 4.0 · Wikimedia Commons
Indri (Indri indri)
MPMF24 · CC BY 4.0 · Wikimedia Commons
Indri (Indri indri)
MPMF24 · CC BY 4.0 · Wikimedia Commons
Indri (Indri indri)
MPMF24 · CC BY 4.0 · Wikimedia Commons
Indri (Indri indri)
MPMF24 · CC BY 4.0 · Wikimedia Commons
Indri (Indri indri)
MPMF24 · CC BY 4.0 · Wikimedia Commons

Where does the indri live?

Not recorded

What is the indri?

Quoted from WikipediaCC BY-SA 4.0

The indri ( ; Indri indri), also called the babakoto, is one of the largest living lemurs, with a head-body length of about 64–72 cm (25–28+1⁄2 in) and a weight of between 6 and 9.5 kg (13 and 21 lb). It has a black and white coat and maintains an upright posture when climbing or clinging. It is monogamous and lives in small family groups, moving through the canopy, and is herbivorous, feeding mainly on leaves but also seeds, fruits, and flowers. The groups are quite vocal, communicating with other groups by singing, roaring and other vocalisations.

It is a diurnal tree-dweller related to the sifakas and, like all lemurs, it is native to Madagascar. It is revered by the Malagasy people and plays an important part in their myths and legends with various stories in existence accounting for its origin. The main threats faced by the indri are habitat destruction and fragmentation due to slash and burn agriculture, fuelwood gathering, and logging. It is also hunted despite taboos against this. The International Union for Conservation of Nature has rated its conservation status as "critically endangered".

From the Wikipedia article “Indri” (en.wikipedia.org/w/index.php?title=Indri&oldid=1379697923), 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.

What does the indri sound like?

Stijn de Jong · CC BY-SA 2.5 · Wikimedia Commons

Is the indri endangered?

The indri is listed as Critically Endangered on the IUCN Red List: it faces an extremely high risk of extinction in the wild.

  1. LCLeast Concern
  2. NTNear Threatened
  3. VUVulnerable
  4. ENEndangered
  5. CRCritically Endangered
  6. EWExtinct in the Wild
  7. EXExtinct

Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Critically Endangered species.

How is the indri classified?

  1. kingdomAnimalia
  2. phylumChordata
  3. classMammalia
  4. orderPrimates
  5. familyIndriidae
  6. genusIndri
  7. SpeciesIndri indri (Gmelin, 1788)

Synonyms Indri brevicaudatus, Indri indri indri, Indri indri variegatus, Indri niger, Indris ater, Lichanotus mitratus

Other names and names in other languages (15)
  • Indri lemurEnglish
  • إندري شائعArabic
  • Λεμούριος ΊντριGreek
  • Indri ColicortoSpanish
  • Indri À Queue CourteFrench
  • インドリJapanese
  • 인드리Korean
  • IndryMalagasy
  • AmboanalaMalagasy
  • BabakotoMalagasy
  • EndrinaMalagasy
  • indrisPolish
  • Indris krótkoogonowyPolish
  • ИндриRussian
  • ІндріUkrainian

Catalogue of LifeWikipediaiNaturalistWikidataIUCN Red List

Relatives of the indri

Other species in the same family Indriidae.

CompareIndri vs Diademed SifakaIndri vs Verreaux s SifakaIndri vs Eastern AvahiIndri vs Silky Sifaka

Common questions

Each answer is written from the sourced facts on this page, and only where they hold the answer.

What kind of animal is the indri?

The indri is a mammal, a primate of the family Indriidae in the superfamily Lemuroidea.

How heavy is the indri?

An adult Indri weighs 8 kg, and up to 8.2 kg, which places it in the medium size class.

What does the indri eat?

The indri is a herbivore.

Is the indri endangered?

Yes. The indri is listed as Critically Endangered on the IUCN Red List, an IUCN threatened category.

Is the indri active during the day?

Yes. The indri is diurnal and arboreal.

How many young does the indri have?

The indri has 1 young per litter, with 0.41 litters per year and a gestation period of 142.1 days.

When does the indri reach sexual maturity?

The indri reaches sexual maturity at 6.2 years (2,264 days).

Sources and how to cite this page

Data as of 2026-11-11. How this page is put together.

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APA

CreatureData. (2026). Indri (Indri indri). Retrieved from https://creaturedata.com/animals/indri

MLA

“Indri (Indri indri).” CreatureData, 2026, https://creaturedata.com/animals/indri.

BibTeX
@misc{indri_2026,
  title = {Indri (Indri indri)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/indri},
  note = {Data as of 2026-11-11}
}