All Kapa peoples have been extinct, little is known about them, however, archaeological findings show that they were semi-nomadic farmers and shepherds, and evidence suggest that they greatly influenced the Ulitan-speaking peoples, and Ulitan-speaking peoples might have learned agricultre(including horticulture and animal husbandry) from Kapa peoples.
Despite that the land of Kapa peoples is geographically close to that of the Garric peoples, it is not sure if the kapa peoples were related to the Garric peoples linguistically and culturally, and it is thought that Kapa peoples and Garric peoples invented agriculture independently.
Recent research shows that the ancestors of the Kapa peoples and the Garric peoples might once occupy a much larger area in Amutet, but at 10000 BK, many of them had been assimilated to the Tingwe-ǂaa Uteq-speaking peoples.
The Kapa Languages are the hypothetical languages of the Kapa peoples, it is likely that the Kapa peoples spoke several related languages rather than one language.
Kapa peoples are prehistorical peoples, they were exterminated before the invention of writing systems, thus their languages were not recorded, and little is known about their languages, however, the word "Kapa" is likely to be the endonym of at least one group of the Kapa peoples.
It is thought that many terms related to animal husbandry in Western Ulitan languages were borrowed from the extinct Kapa languages, as Western Ulitan languages lives on the land where the Kapa peoples once lived, and these terms differ from terms used in all other Ulitan languages. some suspected examples are listed below:
- Proto Westren Ulitan *kamumu "cow"
- Proto Westren Ulitan *kahamham "horse"
- Proto Westren Ulitan *kaba "goat"
- Proto Westren Ulitan *kamep "sheep"
- Proto Westren Ulitan *tapang "table"
- Proto Western Ulitan *nates "tent"