Six monkeys died of unknown causes while in quarantine at the Oregon Zoo on Saturday. The six cotton-top tamarins were found dead by veterinary staff.
Zoo officials say the monkeys belonged to a group of nine tamarins that arrived at the zoo on May 22. They say the remaining three monkeys appear to be in good health. Those monkeys are being closely monitored.
Tim Storms, veterinarian with the Oregon Zoo, says the zoo is investigating the cause of the monkey deaths.
“We’re working to try and find out why,” Storms says. “They’ve got post-mortem exams and we’re waiting for histopathology results to come back and shed some light on that.”