It's true.A challenge for Langoliers. Find one non-Christian reliable source that claims an entire rib can grow back. All bones can regenerate to some extent. In fact people can "grow" by having their legs surgically broken and devices that separate the bones are used.
I found it on several sites.
There have appeared claims that human ribs could regenerate if the periosteum, the membrane surrounding the rib, were left intact. In one study rib material was used for skull reconstruction and all 12 patients had complete regeneration of the resected rib.
I'm as surprised as you.
Both that ribs can grow back and that Lango was right about something.
I don't know which is more shocking.