ɐkˈʌmpənid baɪ jˌuːnɪvˈɜːsᵻɾi ʌv ˌæɹɪzˈoʊnə ɛkˈɑːlədʒˌɪst ɹˈɪtʃɚd ɡɹˈiːnwɛl ænd kɑːŋɡoʊlˈiːz baɪˈɑːlədʒˌɪst mɑːɹsˈɛlᵻn ˈæɡnæɡnə, mˈækəl ˌʌndɚtˈʊk tˈuː ˌɛkspədˈɪʃənz, ðə fˈɜːst ɪn nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi ænd ðə sˈɛkənd ɪn nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi wˈʌn, tə fˈaɪnd ænd fˈoʊɾəɡɹˌæf ðə kɹˈiːtʃɚ.
Accompanied by University of Arizona ecologist Richard Greenwell and Congolese biologist Marcellin Agnagna, Mackal undertook two expeditions, the first in 1980 and the second in 1981, to find and photograph the creature.