▁Institute ▁of ▁An atom y ▁until ▁ 1 9 3 5 . ▁He ▁finished ▁his ▁zo ological ▁studies ▁in ▁ 1 9 3 3 ▁and ▁received ▁his ▁second ▁doctor ate ▁( Ph D ). ▁ ▁While ▁still ▁a ▁student , ▁Lor enz ▁began ▁developing ▁what ▁would ▁become ▁a ▁large ▁men ager ie , ▁r anging ▁from ▁domestic ▁to ▁ex otic ▁animals . ▁In ▁his ▁popular ▁book ▁King ▁Sol omon ' s ▁Ring , ▁Lor enz ▁rec ount s ▁that ▁while ▁studying ▁at ▁the ▁University ▁of ▁Vienna ▁he ▁kept ▁a ▁variety ▁of ▁animals ▁at ▁his ▁parents ' ▁a partment , ▁r anging ▁from ▁fish ▁to ▁a ▁cap uch in ▁mon key ▁named ▁Gl oria . ▁ ▁In ▁ 1 9 3 6 , ▁at ▁an ▁international ▁scientific ▁sym pos ium ▁on ▁instinct , ▁Lor enz ▁met ▁his ▁great ▁friend ▁and ▁colle ague ▁Nik ola as ▁T in ber gen . ▁T ogether ▁they ▁studied ▁ge ese — w ild , ▁domestic , ▁and ▁hy brid . ▁One ▁result ▁of ▁these ▁studies ▁was ▁that ▁Lor enz ▁" real ized ▁that ▁an ▁over power ing ▁increase ▁in ▁the ▁drives ▁of ▁feed ing ▁as ▁well ▁as ▁of ▁cop ulation ▁and ▁a ▁w an ing ▁of ▁more ▁differenti ated ▁social ▁instinct s ▁is ▁characteristic ▁of ▁very ▁many ▁domestic ▁animals ". ▁Lor enz ▁began ▁to ▁suspect ▁and ▁fear ▁" that ▁analog ous ▁processes ▁of ▁d eter ior ation ▁may ▁be ▁at ▁work ▁with ▁civil ized ▁human ity ." ▁This ▁observation ▁of ▁bird ▁hy br ids ▁caused ▁Lor enz ▁to