hiː hɐz ˈɔːlsoʊ dˈʌn ɛkstˈɛnsɪv stˈʌdi ænd ɹˈɪʔn̩ bˈʊks ɐbˌaʊt ˈælᵻɡˌeɪɾɚ snˈæpɪŋ tˈɜːɾəlz ænd ɡˌælɐpˈeɪɡoʊz tˈɔːɹɾəsᵻz.
He has also done extensive study and written books about alligator snapping turtles and Galapagos tortoises.