Arthur the Lion was euthanized at the Peoria Zoo this week after battling lymphoma.. At 18 years old, Arthur had already lived past the median life expectancy of 16.9 years for a lion in managed ...

A gorilla known for her tickle fights was euthanized due to age-related health decline, a Colorado zoo said. A western Iowland “gorilla icon” named Roxie who was known by Cheyenne Mountain Zoo ...