Spalding carried out some remarkable experiments on animal behaviour , and discovered the phenomenon now known as imprinting , later rediscovered by Oskar Heinroth , then studied at length and popularised by Konrad Lorenz .
Spalding carried out some remarkable experiments on animal behaviour , and discovered the phenomenon now known as imprinting . This was later rediscovered by Oskar Heinroth , then studied and popularised by Konrad Lorenz and Niko Tinbergen .