Konrad Lorenz studied imprinting in geese

• He took two groups of goose eggs
• Group 1 were hatched by their mothers, group two were hatched in an incubator without a mother
• The newborn geese in group 1 first saw their mother, and therefore followed their mother
• The newborn geese in group 2 first saw Lorenz, so they followed him
• The newborn geese formed an attachment to the first moving object that they saw, which helps them to recognise their mother

IMPRINTING IS BOTH INNATE AND LEARNED