Paragraph 2
The
say the fish was one of the
jawed vertebrates with teeth. They were excited at how
its teeth were to ours. A co-author of the
said: "These findings change our whole understanding of the
of teeth." He said: "Their
...seem to be
ancestral to our own. When you grin at the bathroom
in the morning, the teeth that grin back at you can trace their origins right back to [that fish]." Another researcher said: "Nobody expected to find teeth so
on the evolutionary
."
