This image of the cub's first exam was taken in late August 2012. The 3-minute exam ended with the cub receiving a clean bill of health from San Diego Zoo vets.
[Full Story: San Diego Zoo Panda Cub Gets First Exam]
On Sept. 6, 2012, it was determined that the 5-week-old cub was a healthy baby boy. With weight rising, hair growing in and ear canals opening, the furball was doing well.
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At 45 days old, the adorable cub began opening his eyes. This image was taken Sept. 12, 2012 during another exam.
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The giant panda cub checked out well at his exam on Sept. 20, 2012. With eyes opening well and belly growing he is hitting all the right marks.
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The growing cub's eyes were completely open at his 9-week checkup on Oct. 4, 2012.
[Full Story: Oh Hai: Panda Cub Completely Opens Eyes]
At 10 weeks, the giant panda cub was already cutting teeth. According to San Diego vets, the cutie pie is right on track with his development.
[Full Story: San Diego Panda Cub About to Sprout Baby Teeth ]
Clumsy but oh-so-adorable, the 11-week-old cub took his first on-camera steps. The exam on Oct. 18, 2012 found the cub to be developing a little spot on his tail and baby teeth cutting through.
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As of the giant panda cub's 11th exam on Nov. 1, he was able to clear the ground with his belly. And, his legs were beginning to work together, bringing him closer to walking.
[Full Story: Full-Bellied Panda Cub Pushes Up on Four Legs]
On Nov. 13, at 100 days old, the cub was named, according to a Chinese panda-naming tradition. The adorable cub's name means "Little Gift."
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Just days after receiving his name, Xiao Liwu weighed in at a pudgy 10.3 pounds, a full pound more than at his last exam.
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On Nov. 29, this 4-month old cutie showed the world his full belly.
At his weekly checkup zoo officials found several new teeth and one wiggly cub.
[Full Story: Fidgety Panda Cub Shows Off Belly]
During his 16th checkup the roly poly panda cub was crawling better.
Zoo officials felt more teeth just under the gums.
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Now 20 weeks old, the panda weighed in at 14.5 pounds during his exam on Dec. 18. The keepers have figured out that to accomplish the necessary checkups, they must supply a toy to keep the fidgety cub busy. Currently his favorite toy is a plastic ball.
[Full Story: Cute Panda Cub Plays Ball ]
At nearly 5-months old, Xiao Liwu is walking with much more confidence. Keepers are watching his climbing skills develop. The cuddly cub got some new toys to keep him busy during his most recent check-up.
[Full Story: Panda Cub Gets New Toys]
On New Year's morning Xiao Liwu was active, strong and adventurous during his exam. The darling cub weighs about 16 pounds and about two and a half feet long.
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