The Houston Zoo is once again mourning the loss of one of its resident orangutans. On Sunday morning, the zoo's 52-year-old orangutan, Cheyenne, died unexpectedly. Zoo officials said after Cheyenne suddenly became ill,

The oldest orangutan at the Houston Zoo died Sunday morning while in recovery after undergoing an emergency exam to diagnose and treat an illness. Cheyenne, a 52-year-old orangutan, had a severe kidney infection and received treatment,

The Houston Zoo had to say goodbye to the oldest orangutan at the facility after she died unexpectedly. Cheyenne, who was 52 years old, had an emergency veterinary examination Sunday morning after she came down with a sudden sickness.

Cheyenne, a 52-year-old orangutan at the Houston Zoo, died from complications of a kidney infection, the zoo said.