Little Joe the gorilla, famous for his 2003 escape from Boston’s Franklin Park Zoo that injured bystanders before recapture, is now 33 and mid-transfer to the Pittsburgh Zoo & Aquarium under a Gorilla Species Survival Plan breeding recommendation. Traders assign “No” a 98.1% implied probability because modern AZA-accredited facilities use reinforced enclosures, professional transport teams, and layered security that have prevented similar incidents for decades; the 2003 breach predates current standards and Little Joe has shown no recent escape behavior. The only realistic upset paths involve an unforeseen logistics failure during the move itself or a new-enclosure vulnerability, both viewed as low-probability tail risks given institutional oversight and the animal’s age.