A female giant panda at a Tokyo zoo has shown signs of being pregnant, including a reduced appetite and increased dozing, the zoo operator said Thursday.If 11-year-old Shin Shin at the Ueno Zoological Gardens does give birth, the panda cub would be the first born at the park in five years.Shin Shin and male panda Ri Ri, also 11, had a cub in 2012 but it died six days after birth due to pneumonia. The birth of the cub made headlines in Japan as the first born through natural breeding at the zoo.Shin Shin showed signs of pregnancy the next year, but was later proved not to be.The zoo in Tokyo…READ FULL ARTICLE