http://www.theepochtimes.com/n2/mambots/content/multithumb/thumbs/350.0.1.0.16777215.0.stories.large.2010.07.07.panda.jpgA panda cub was accidentally crushed to death by his mother in a Beijing zoo on July 3.

The mother panda, named ‘Ying Hua,’ gave birth to twin female pandas just 20 hours earlier.

Chinese media quote a zookeeper saying that the panda had been feeding her cubs when she heard them cry. Then the new mother, who hadn’t slept in 20 hours, fell asleep in the corner of her enclosure and accidentally crushed one of her cubs to death.