Koro is known as a Tibeto-Burman language belonging to the Sino-Tibetan language family, even though it has resemblances to Tani farther to the east. It has been argued that Koro is actually part of the Greater Siangic family, independent from but influenced by the Sino-Tibetan family. Koro is spoken by about 1,500 people in the Koro-Aka tribe who are found in the East Kameng District of Arunachal Pradesh in northeast India. Few speakers are under 20 years old. The majority of Koro speakers live in bilingual households in which one or more members speak Ako or another indigenous language rather than Koro. The Koro-Aka tribe lives among the Aka (Hruso) tribe. However, the Koro-Aka people speak a very distantly related language from the remaining Aka tribe who speak Hruso-Aka. Researchers hypothesize Koro may have originated from a group of people enslaved and brought to the area. Since there are so few people who speak Koro, it is considered an endangered language. Identification Recognition in the academic literature of Koro as a distinct language goes back at least to the 2009 edition of the Ethnologue (Lewis 2009), which based its findings on a language survey conducted in 2005. It notes that Koro has only 9 percent lexical similarity with Hruso Aka, and that it is "highly dissimilar to neighboring languages". In October 2010, the National Geographic Daily News published an article corroborating the findings of the Ethnologue based on research conducted in 2008 by a linguistic team of David Harrison, Gregory Anderson, and Ganesh Murmu while documenting two Hruso languages (Aka and Miji) as part of National Geographic's "Enduring Voices" project. It was reported to them as a dialect of Aka, but turned out to be highly divergent. Mark Post and Roger Blench (2011) propose that Koro is related to Milang in a branch, or perhaps independent family, they call Siangic. See also Koro word lists (Wiktionary) Phonology Consonants Below are the consonants of Koro. Phonemes to the left of a cell are voiceless while phonemes to the right are voiced with the exception of the glottal fricatives which are both voiceless. The information from the chart above was collected from the most recent research done on the consonants of Koro. However, there are a few discrepancies of information between recent research and past research. In Geissler’s work (2013), the articulation of /ʋ/ exists and can sound similar to /v/ or