It is completely normal, as many babies are not yet rolling by four months old. Provide your baby with tummy time for opportunities to learn, and consult your doctor if you are still worried.
Puppies, especially golden retrievers, usually eat well and are greedy, so not eating is a worrying sign, especially if he's lost weight. This may not be a simple matter of...
Sometimes weather conditions mean that too much cold and air pollution have restricted the plant's ability to recreate its buds for flowers. But it will produce buds later. If you...