Mark Evans is a British vet who became a TV-presenter. His TV career started 1990 when he complained about an item on TVam that made fun of fat pets, and was invited as a guest on the show giving advice to the owner of an obese cat. He's since fronted over 1000 shows, including the Is Born series for Discovery Channel. Wikipedia
The definitive Wikipedia entry for Mark Evans. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Mark_Evans_%28TV_Host%29