The world's smallest panda cub weighs less than an egg
4hw.com.cn: at 14:41 on June 11, Chengdu Giant Panda Breeding Research Base giant panda 'Chengda' gave birth to a female giant panda cub with a birth weight of 171.9g. In the evening, the twin sister was born, with a birth weight of 42.8g, a few grams lighter than the previous may day giant panda, the smallest surviving newborn weight in the world, and only a quarter of the normal giant panda cubs.