Mercy! Tiger cub calls mercy! Please, don't bite too hard! This little Siberian tiger was born last month at the Hangzhou Wildlife Zoo in China, but his mother rejected the cub. So, the baby, called Lucky, was placed with a different family —of dogs. The zoo found a new dog mother who has accepted the tiger and is allowing it to feed on her along with her puppy —who looks to be the perfect playmate for the family's new addition.