When 22-year-old giant panda Mei Xiang gave birth to a healthy cub on August 21, 2020, Smithsonian's National Zoo officials were both excited and anxious. That's because giant p...

Dogs are often referred to as "man’s best friend." But MacKenzie, a four-pound Chihuahua, who was named winner of the 2020 American Hero Dog competition on October 19, 2020, is ...