When Sarah Foster and her husband brought him home in February of 2023, Murphy was a dark chocolate brown ball of energy ... that causes a dog's skin to lose pigmentation or color.

This is part of why many dogs love chasing yellow tennis balls," the veterinarian shared. But it's not just color that counts. Dr. Teller shared that motion is also important when choosing dog toys.

Lucy Notarantonio is Newsweek's Senior Lifestyle and Trends Reporter, based in Birmingham, UK. Her focus is trending stories and human interest features ranging from health, pets and travel.