The first panda born in Tokyo's Ueno Zoo in five years is growing well and has become "fluffy", the zoo said on Monday as it released fresh video footage of the two-month old. The footage showed the unnamed female cub being weighed and measured by keepers, napping, crawling and playing with its mother, Shin Shin. The zoo has invited the public to name the cub, and to date has received some 250,000 submissions. The name will be announced in September.