Weaning and the shift from social to object play in kittens

Researchers tracked litters of kittens to examine how the timing of weaning relates to changes in play. As mothers reduced nursing, kittens increased object-directed and predatory play while social play among siblings declined and became rougher. The study tied the developmental reorganisation of play to the nutritional transition toward independent feeding, suggesting that the rise in object play helps prepare kittens for hunting. By manipulating and observing weaning, the authors illuminated how maternal investment schedules sculpt the emergence of adult behaviour patterns, providing a mechanistic account of why play forms change in sequence during kitten development.