The Science of Screaming, And What Was the Biggest Dinosaur?

The video explores the unique characteristics of human screams, highlighting a study by NYU researchers that identifies 'roughness' as a key feature distinguishing screams from other sounds. Brain scans reveal that screams activate the anterior amygdala, linked to fear. The video also revisits the discovery of the dinosaur Dreadnoughtus, initially thought to be the largest ever found. A new study suggests it was smaller than first estimated, using a computer model to reassess its mass. The video concludes by inviting viewers to discuss these scientific findings.

What unique quality do screams possess that differentiates them from other sounds?

• Duration

• Roughness

• Volume

• Pitch

Which part of the brain is activated by screams, according to the research?

• Hippocampus

• Cerebellum

• Anterior amygdala

• Primary auditory cortex

What was the initial belief about the size of Dreadnoughtus?

• It was the smallest dinosaur ever found

• It was the largest dinosaur ever found

• It was the heaviest flying dinosaur

• It was the fastest dinosaur ever found

What method did British researchers use to re-evaluate the size of Dreadnoughtus?

• Fossil comparison

• DNA analysis

• Carbon dating

• A new computer model

What do the Drexel paleontologists believe about the new measurements of Dreadnoughtus?

• They agree with the new findings

• They believe the new measurements are incorrect

• They believe the new measurements change the dinosaur's volume but not its mass

• They think the new measurements change the dinosaur's mass