12 most dangerous dinosaurs of all time, ranked by a paleontologist

Children playing in a dinosaur exhibit in in Woodland Hills, California. A paleontologist has weighed in on which dinosaurs would be most dangerous to humans.Mel Melcon / Los Angeles Times via Getty Images

• Dinosaurs have fascinated humans for centuries, even though they never overlapped with humankind.
• Still, we know enough about their characteristics to imagine living together.

Humans and dinosaurs never lived at the same time. But what if they did? Which would be the dinosaurs you should be most afraid of?

Paleontologists have been studying dinosaur remains for decades, uncovering the incredible ways they developed to protect themselves and attack others.

Based on these characteristics, paleontologist Cassius Morrison helped Insider rank which would be the biggest threat to humanity.

Here are the most dangerous dinosaurs and what could have made them a threat, according to Morrison.