Healthy, Happy and Heavy Cubs!
The twins are growing so fast. Mei Lun is now 6.68 kilograms (14.73 pounds) and Mei Huan is right behind him at 6.53 kilograms (14.40 pounds). Heather Roberts, Keeper III, has been keeping track of the boys and has this update for Cub Confidential:
“The cubs are becoming even more difficult to weigh than before. Unless they are asleep when we need to weigh them, all they want to do is play with or climb out of the tub we weigh them in! Sometimes we try giving them a toy to occupy them in the tub. At times this works, and at other times it doesn't. Even when the toy manages to keep them inside the weighing tub, just the act of playing with the toy causes the scale to fluctuate quite a bit. We try to wait until they are sleepy to weigh them, but they do not get sleepy as often as they used to and it can be a long wait. There are times when we have to place them in the nest box and let them play themselves out before we can get an accurate weight for them. We are still weighing both cubs at least four times per day.”
Wow! Thanks, Heather! Not only are they growing fast, but the cubs are so active. It’s such a joy to watch them on PandaCam. Jennifer Andrew, Keeper I, has this to share about our two busy boys:
“The cubs have become really comfortable in their dens, and as a result, have learned the layout really well. When Lun Lun moves them or we return them to the dens after weighing them, they always seem to know exactly where they are and exactly where they want to go. Recently, they have learned that they can't always go where they want to, though, especially if a keeper is cleaning a den. When we clean the dens, we close Lun Lun and the cubs out of the dirty den until it is clean and dry. Occasionally it is comical to watch the cubs investigate the closed shift doors. Most of the time they know what is waiting for them on the other side – a den to explore, some awesome bamboo to play with, or Lun Lun. But sometimes they seem thoroughly confused about where the doorway went, and then before they know it, the doorway is back again! “
Before we know it, the boys will be eating their first bamboo! Thanks, Jennifer.
Panda Updates - from the website. My comment from Tuesday's is: "I didn't know that!" Tuesday, December 10We’re frequently asked if it’s harmful for the cubs to be in contact with Lun Lun’s feces. It’s not harmful for them; in fact, the opposite might be true. The young of some species consume their mothers’ feces to obtain the microbes needed to digest their food. This is especially common in species which eat plants and has been well documented in elephants and koalas. Giant panda cubs have not been observed consuming their mothers’ feces, but being exposed to the mothers’ feces may also help them obtain the needed microbes.
Rebecca Snyder, PhD
Curator of Mammals
Monday, December 9The cubs' new obsession with the scale is slightly problematic overnight. We do not have an infared light in that den, so in order to see the cubs we have to leave the dimmer light on overnight. Even with the dimmer light, it can be difficult to see them in certain parts of that den, especially behind the scale. We like to disturb the other pandas and Lun Lun as little as possible overnight and prefer to leave the lights off while we are here 24 hours a day. However, now that the cubs spend most of their time playing around or sleeping behind the scale, we are using the lights more often. When Lun Lun and the cubs are asleep, we take that opportunity to turn all of the lights out. We keepers just have to be vigilant about the sounds of the cubs or Lun Lun when they wake up. We have tried to encourage the cubs to sleep in the nest box overnight by returning them there after their weight checks, but they always make a beeline for the scale as soon as they are back in the dens! Don't worry, PandaCam viewers, you are not missing too much action in the wee hours; Lun Lun and the cubs do sleep for most of the night.
Heather R.
Carnivore Keeper III