Lun Lun on the Move - cub confidential update 
The nest box looks different. Where’s all the hay? Curator of Mammals Rebecca Snyder, PhD, gives us an update on changes in Lun Lun’s den:
“You may have noticed that we removed the bedding from the nest box. Our colleague from the Chengdu Research Base, Deng Tao, asked us to remove the bedding because he is concerned about the cubs ingesting it accidentally. There is a small risk that ingesting hay could be harmful to the cubs’ gastrointestinal tracts, so we decided to remove the hay. The cubs have a full, thick coat of fur now, and don’t need the bedding for warmth. Lun Lun is also perfectly comfortable resting on the floor without bedding.
Lun Lun has been moving the cubs to different dens over the last few days. These were brief excursions, and she soon returned the cub to the nest box. Lun Lun has done this with her previous cubs, but not until they were older. Giant panda mothers in the wild will move their cubs to different dens periodically. So, I think it’s normal for Lun Lun to move her cubs to different locations. I expect she will continue to move the cubs around in the coming weeks. We monitor her and the cubs closely to make sure they are comfortable and safe wherever they are.”
Thanks, Rebecca! Whether they are lying with mom or in the nest box, we know the cubs are safe and are extremely comfortable in their cuddly fur!

Goodbye, incubator! Jennifer Andrews, Keeper I, wanted to update Cub Confidential subscribers on the next step for our boys:
“When panda cubs are born, they are not able to regulate their own body temperatures, which means that they completely rely on their mom to keep them warm. Since their births, Cub A and Cub B have alternated sleeping in an incubator until it is their turn to spend time with Lun Lun. As they have grown and developed, we have been able to slowly decrease the incubator temperature from 95° F to 78° F. Now that the cubs are able to thermoregulate on their own, it is time to say goodbye to the incubator and introduce them to a new nursery space.
Last night we set up the new "box.” It is a tall, open-top box with a window on one side that allows us to easily monitor the cubs. It looks like a playpen of sorts, but it is designed specifically with panda cubs in mind, meaning that it is cub-proofed so that they can't climb out or injure themselves. It is also easy to disinfect. This will be the cubs' new nursery space until they are big enough and mobile enough to both be with Lun Lun at the same time. Until then, we will continue swapping the cubs approximately every four hours so that they each get to spend time with Lun Lun. In the coming weeks, the cubs will use their new space to practice scooting and, eventually, walking. They'll also spend plenty of time napping, of course!”

Time flies when you’re a growing panda cub! It seems like just yesterday the cubs were wrapped in blankets to keep warm. Thank you for the update, Jennifer!