At first, the author argues that the soft flexible substance inside the bone channel may indicate residue of the real blood vessels in T.rex .Conversely, the lecturer brings up the idea that this substance might be traces of moist residue that have left by bacteria colonies. As a matter of fact, bacteria sometimes colonize empty areas in bones such as the channels in vessels and they
At first, the author argues that the soft flexible substance inside the bone channel may indicate residue of the real blood vessels in T.rex .Conversely, the lecturer brings up the idea that this substance might be traces of moist residue that have left by bacteria colonies. As a matter of fact, bacteria sometimes colonize empty areas in bones such as the channels in vessels and they