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Thank goodness for thick glass.

A toddler was visiting the Chiba Zoological Park in Tokyo with his family when a 400 pound lion charged at him with full force, only to be stopped by the glass wall of its enclosure.

The heart-pounding was caught on camera and is now going viral.

According to zookeepers, the lion behaves like this every time it sees children, hoping to “play” with them.