Paragraph 2
The fish was
of the earliest jawed
with teeth. A researcher said: "[Our]
change our whole understanding of the
of teeth." He said: "Their
...seem to be directly
to our own. When you grin at the bathroom
in the morning, the teeth that grin back at you can [follow] their origins right back to [that fish]." Another
said: "Nobody expected to find teeth so
on the evolutionary
."