What if the fish Are 700 years old?

An interesting oops was discovered recently. Radiocarbon dating of fish doesn't work!

Or does it?

Archeologists have discovered that fish remains ground in pottery bowls from a freshly caught fish can give radiocarbon dates that make them appear Medieval! Apparently, water has less carbon-14 than air.

But what if the fish Are centuries older than we thought? What if fish in the wild do live unbelievably long lives?

Gold fish, nope, can't keep them alive for more than a few months.

Sturgeon though, they can be hundreds of years old.

And lets not forget about the Lock Ness Monster... that's prehistoric.

Unfortunately, radiocarbon dating shows time of death, not age of the beast. So unless someone used a time machine to go back and catch and cook a fish in Medieval times, and then bring it back to present day... not a very likely use of a time machine if there was one... it's just not a good method for dating fish remains.

So dating of ancient cultures that ate a lot of fish may be a bit fishy.