Our vet commented that our house bunnies were a little overweight a few months ago and changing just their diet has not really helped with weight loss at this point. The vet thinks exercise is likely a big contributing factor now. While they have space I feel like they are very lazy by choice so this does make sense. They seem to lose interest in their enrichment toys very quickly so at a loss of what to do to help them. Anyone have any ideas?? Thank you