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“The key issue here is distinguishing between hazard and harm,” Steier told Salon in an email.

"Even a broken tooth can be a distinguishing mark that will help a family recognise a missing loved one."

Sometimes distinguishing a tell’s layers is a subtle art, but a burn layer stands out from everything around it.

Another distinguishing feature of the species is the presence of hooks on the middle of their eight arms.

They’re capable of distinguishing between a U.S. presidential administration and individual American citizens — especially ones who made the choice to move to Canada.