The most common disorder affecting both dogs and cats, however, is dental disease, affecting 78 percent of dogs and 68 percent of cats.
About. 1  Mark Ballas is a 30 year old American Dancer. Born Mark Alexander Corky Ballas Jr. on 24th May, 1986 in Houston, Texas, USA, he is famous for Dancing with the Stars in a career that spans 2005âpresent. His zodiac sign is Gemini.
Mark Edward Kelly (ex-astronaut) is 53 years old (birthdate: February 21, 1964). His twin brother Scott was also an astronaut. Mark David Kelly (ex-footballer) is 50 years old (birthdate: October 7, 1966). Mark Dean Kelly (bassist) is 60 years old (birthdate: June 28, 1956).