The exclamation mark is a punctuation mark that indicates strong feelings or shouting and usually concludes a sentence. It can show excitement, surprise, or emphasis. The exclamation mark is used at the end of the sentence about the T-rex to emphasize that it was an enormous and powerful dinosaur that ruled over others.

1. Exclamation Mark
Points out use of strong feelings
or shouting and often marks the
end of a sentence.
A T-rex got up to 20
feet tall and was the
king of dinosaurs!