Archaeologists believe the painted leopard would have acted as a talisman to imbue its owner with the strength to pass into the afterlife.
The managers faced a major backlash on social media.
The boy lived with his parents inside a fenced off area in the park.
Ongoing development and expanding road networks have encroached on the Amur leopard habitats.
In the Russian Far East, scientists thought they had spotted a tiger flee shelter from the snow, possibly spooked by a much smaller female leopard sleeping inside.