Brain casts

Tyrannosaurus rex's brain was bigger than Barosaurus'. Brains are too soft to fossilize, but casts from the inside of dinosaur skulls show us their shapes and sizes.

Sound Making Dinosaur

Making noises

Parasaurolophus and other crested dinosaurs could produce noisy signals from their head crests, identifying themselves to each other or warning of danger. Tubular sound chambers ran from the nose of Parasaurolophus up into its crest. Air traveled through this prehistoric "trombone," where it vibrated as sound.

Dinosaur Brain Anatomy

View from left View from right common in herbivores, sent two different pictures to the brain.

View from left View from right common in herbivores, sent two different pictures to the brain.

Color

Single vision Brain size is not always a sign of intelligence, but big-brained Troodon was probably one of the smartest dinosaurs. Troodon had large eyes and good vision. it benefitted from stereoscopic sight, which means it saw one image, the way that we do. Whether it could see in color or black and white, Troodon could judge distance when chasing or catching its prey.

Color

Black and white

Black and white

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