Sperm doesn’t appear to forget anything. Stress felt by dad—whether as a preadolescent or adult—leaves a lasting impression on his sperm that gives sons and daughters a blunted reaction to stress, a response linked to several mental disorders.
School of Veterinary Medicine
John Lewis of the School of Veterinary Medicine discusses caring for a puppy with a cleft palate.
Penn’s Ryan Hospital has been named one of the nation’s first trauma centers for animals.