印尼考古團隊在中爪哇發現古代巨猿化石，這種巨猿身高3公尺，的巨種黑猩猩，這也是印尼首度發現滅絕的古代巨猿。

巨猿的下顎化石是由中爪哇直葛(Tegal)西曼多(Semedo)的居民所發現的，確認這副有著兩顆大臼齒的化石，屬於遠古時期的某種巨猿。

當地考古團隊將發現的巨猿化石稱為「爪哇金剛(King Kong Java)」，存放在梭羅市的博物館。挖出的化石下顎部分有10公分長，臼齒則有2公分寬，根據測定結果，這些化石屬於10萬年滅絕的「步氏巨猿(Gigantopithecus blacki)」，學者推測成年步氏巨猿身高超過3公尺高，更重達540公斤。

 Gigantopithecus (from the Ancient Greek γίγας gigas "giant", and πίθηκος pithekos "ape") is an extinct genus of ape that existed from perhaps nine million years to as recently as one hundred thousand years ago,^[1] in what is now Nepal, China, India, and Vietnam, placing Gigantopithecus in the same time frame and geographical location as several hominin species.^[2] The fossil record suggests that individuals of the species Gigantopithecus blacki were the largest known apes that ever lived, standing up to 3 m (9.8 ft), and weighing up to 540 kg .

巨猿（Gigantopithecus）是已滅絕的一屬猿，生存於約100-30萬年前的中國、印度及越南^]，與幾種人科在時間框及地理位置上相同。^[化石紀錄指步氏巨猿是最巨大的猿，站立時高3米及重540公斤.