Unga, a bonobo that has overcome a stroke, gives the vet team a scare on the way to her annual exam. Two otters named Yin and Yang show off their x-ray training skills. Raymer, an elderly Bactrian deer, appears skinny and frail, prompting a field procedure at the Wilds, and Ginger, a 41-year-old white-naped crane, keeps on defying the odds.